Etiqueta: NASA

  • 1ST MOON CREW IN 50 YEARS INCLUDES WOMAN, BLACK ASTRONAUT

    1ST MOON CREW IN 50 YEARS INCLUDES WOMAN, BLACK ASTRONAUT

    This photo provided by NASA shows, from left, NASA Astronauts Christina Koch, Victor Glover, Reid Wiseman, and Canadian Space Agency Astronaut Jeremy Hansen at the Johnson Space Center in Houston on March 29, 2023. On Monday, April 3, 2023, NASA announced them as the crew who will be the first to fly the Orion capsule, launching atop a Space Launch System rocket from Kennedy Space Center no earlier than late 2024. They will not land or even go into lunar orbit, but rather fly around the moon and head straight back to Earth, a prelude to a lunar landing by two others a year later. (Josh Valcarcel/NASA via AP)

    By MARCIA DUNN

    NASA on Monday named the four astronauts who will fly around the moon late next year, including the first woman and the first African American assigned to a lunar mission.

    The first moon crew in 50 years — three Americans and one Canadian — was introduced during a ceremony in Houston, home to the nation’s astronauts as well as Mission Control.

    “This is humanity’s crew,” said NASA Administrator Bill Nelson.

    The four astronauts will be the first to fly NASA’s Orion capsule, launching atop a Space Launch System rocket from Kennedy Space Center no earlier than late 2024. They will not land or even go into lunar orbit, but rather fly around the moon and head straight back to Earth, a prelude to a lunar landing by two others a year later.

    The mission’s commander, Reid Wiseman, will be joined by Victor Glover, an African American naval aviator; Christina Koch, who holds the world record for the longest spaceflight by a woman; and Canada’s Jeremy Hansen, a former fighter pilot and the crew’s lone space rookie. Wiseman, Glover and Koch have all lived on the International Space Station. All four are in their 40s.

    “This is a big day. We have a lot to celebrate and it’s so much more than the four names that have been announced,” Glover said.

    Mission commander Reid Wiseman, left, listens as mission specialist Christina Hammock Koch makes remarks during a NASA ceremony naming the four astronauts who will fly around the moon by the end of next year on the Artemis II mission, at a ceremony held in the NASA hanger at Ellington airport Monday, April 3, 2023, in Houston. (AP Photo/Michael Wyke)

    This is the first moon crew to include someone from outside the U.S. — and the first crew in NASA’s new moon program named Artemis after the twin sister of mythology’s Apollo. Late last year, an empty Orion capsule flew to the moon and back in a long-awaited dress rehearsal.

    “Am I excited? Absolutely,” Koch said to cheers from the crowd of schoolchildren, politicians and others. “But my real question is: ‘Are you excited?’ ” she said to more cheers.

    The Canadian Space Agency snagged a seat because of its contributions of big robotic arms on NASA’s space shuttles and the space station. One is also planned for the moon project.

    Hansen said he’s grateful that Canada is included in the flight.

    “We are going to the moon together. Let’s go!” he said.

    Victor Glover gives remarks after he was announced at the mission pilot for the Artemis II during a NASA ceremony naming the four astronauts who will fly around the moon by the end of next year on the Artemis II mission, at a ceremony held in the NASA hanger at Ellington airport Monday, April 3, 2023, in Houston. (AP Photo/Michael Wyke)

    During Apollo, NASA sent 24 astronauts to the moon from 1968 through 1972. Twelve of them landed. All were military-trained male test pilots except for Apollo 17′s Harrison Schmitt, a geologist who closed out that moonlanding era alongside the late Gene Cernan.

    Provided this next 10-day moonshot goes well, NASA aims to land two astronauts on the moon by 2025 or so.

    NASA picked from 41 active astronauts for its first Artemis crew. Canada had four candidates. Almost all of them took part in Monday’s ceremony at Johnson Space Center’s Ellington Field, a pep rally of sorts that ended with Wiseman leading the crowd in a chant.

    Congratulations streamed in from retired astronauts, including Apollo 11’s Buzz Aldrin and Scott Kelly, the first American to spend close to a year in space. “Huge risks, huge commitment, eternal benefits for all. What a crew!” tweeted Chris Hadfield, the first Canadian commander of the space station a decade ago who performed David Bowie’s “Space Oddity” from orbit.

    FILE – A model of the Orion capsule and the service module is displayed at the Kennedy Space Center in Cape Canaveral, Fla., on Friday, Nov. 16, 2018. On Monday, April 3, 2023, NASA revealed the identities of the four astronauts – three US and one Canadian– who will fly around the moon in late 2024. It’s the first moon crew in more than 50 years. (AP Photo/John Raoux)

    President Joe Biden spoke with the four astronauts and their families on Sunday. In a tweet Monday, Biden said the mission “will inspire the next generation of explorers, and show every child — in America, in Canada, and across the world — that if they can dream it, they can be it.”

    ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is solely responsible for all content.

  • NASA SCRUBS LAUNCH OF NEW MOON ROCKET AFTER ENGINE PROBLEM

    NASA SCRUBS LAUNCH OF NEW MOON ROCKET AFTER ENGINE PROBLEM

    By MARCIA DUNN

    CAPE CANAVERAL, Fla. (AP) — NASA called off the launch of its mighty new moon rocket on its debut flight with three test dummies aboard Monday after a last-minute cascade of problems culminating in unexplained trouble related to an engine.

    The next launch attempt will not take place until Friday at the earliest and could be delayed until mid-September or later.

    The mission will be the first flight in NASA’s Artemis project, a quest to put astronauts back on the moon for the first time since the Apollo program ended 50 years ago.

    As precious minutes ticked away Monday morning, NASA repeatedly stopped and started the fueling of the Space Launch System rocket because of a leak of highly explosive hydrogen, eventually succeeding in reducing the seepage. The leak happened in the same place that saw seepage during a dress rehearsal in the spring.

    The fueling already was running nearly an hour late because of thunderstorms off Florida’s Kennedy Space Center.

    Then, NASA ran into new trouble when it was unable to properly chill one of the rocket’s four main engines, officials said. Engineers struggled to pinpoint the source of the problem well after the launch postponement was announced.

    Mission manager Mike Sarafin said the fault did not appear to be with the engine itself but with the plumbing leading to it.

    Complicating matters, as engineers were trying to troubleshoot that problem on the launch pad, yet another hydrogen leak developed, this one involving a vent valve higher up on the rocket, Sarafin said.

    “This is a very complicated machine, a very complicated system, and all those things have to work, and you don’t want to light the candle until it’s ready to go,” said NASA Administrator Bill Nelson.

    Referring to launch delays, he said: “It’s just part of the space business and it’s part of, particularly, a test flight.”

    The rocket was set to lift off on a flight to propel a crew capsule into orbit around the moon. The six-week mission was scheduled to end with the capsule returning to Earth in a splashdown in the Pacific in October.

    The 322-foot (98-meter) spaceship is the most powerful rocket ever built by NASA, out-muscling even the Saturn V that took the Apollo astronauts to the moon.

    The dummies inside the Orion capsule were fitted with sensors to measure vibration, cosmic radiation and other conditions during the shakedown flight, meant to stress-test the spacecraft and push it to its limits in ways that would never be attempted if humans were aboard.

    Asked about the possibility of another launch attempt on Friday, Sarafin said, “We really need time to look at all the information, all the data. We’re going to play all nine innings here.”

    Even though no one was on board, thousands of people jammed the coast to see the rocket soar. Vice President Kamala Harris and Apollo 10 astronaut Tom Stafford were among the VIPs who arrived.

    Assuming the shakedown flight goes well, astronauts will climb aboard for the second Artemis mission and fly around the moon and back as soon as 2024. A two-person lunar landing could follow by the end of 2025.

    The problems seen Monday were reminiscent of NASA’s space shuttle era, when hydrogen fuel leaks disrupted countdowns and delayed a string of launches back in 1990.

    Later in the morning, NASA also officials spotted what they feared was a crack or some other defect on the core stage — the big orange fuel tank with four main engines on it — but they later said it appeared to be just a buildup of frost in a crevice of the insulating foam.

    Launch director Charlie Blackwell-Thompson and her team also had to deal with sluggish communication between the Orion capsule and launch control. The problem required what turned out to be a simple fix.

    Even if there had been no technical snags, thunderstorms ultimately would have prevented a liftoff, NASA said. Dark clouds and rain gathered over the launch site as soon as the countdown was halted, and thunder echoed across the coast.

    ___

    The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

  • NASA CANCELA EL LANZAMIENTO DE SU NUEVO COHETE LUNAR

    NASA CANCELA EL LANZAMIENTO DE SU NUEVO COHETE LUNAR

    Por MARCIA DUNN

    CABO CAÑAVERAL, Florida, EE.UU. (AP) — La NASA canceló el lunes el lanzamiento de su nuevo cohete lunar en su vuelo de debut con tres maniquíes de prueba a bordo, después de un aluvión de problemas de última hora que culminó en dificultades inexplicables relacionadas con un motor.

    El próximo intento de lanzamiento no se realizaría antes del viernes y podría retrasarse hasta mediados de septiembre o después.

    La misión representa el primer vuelo del proyecto Artemisa de la NASA, que pretende llevar astronautas de vuelta a la Luna por primera vez desde que el programa Apolo terminó hace 50 años.

    A medida que pasaban minutos valiosos el lunes por la mañana, la NASA comenzó y suspendió repetidamente el suministro de combustible del cohete del Sistema de Lanzamiento Espacial debido a una fuga de hidrógeno, y finalmente logró reducir la filtración. La fuga se presentó en el mismo lugar en que se registró una filtración durante un ensayo general a principios de año.

    El abastecimiento de combustible ya se había retrasado casi una hora debido a tormentas eléctricas cerca del Centro Espacial Kennedy de Florida.

    Luego, la NASA enfrentó nuevos problemas al no poder enfriar adecuadamente uno de los cuatro motores principales del cohete, explicaron funcionarios. Los ingenieros batallaban para identificar el origen del problema mucho tiempo después de que se anunció la postergación del lanzamiento.

    El director de la misión, Mike Sarafin, dijo que la falla no parecía estar en el motor en sí, sino en la tubería que lo conecta.

    Para complicar las cosas, mientras los ingenieros trataban de solucionar ese problema en la plataforma de lanzamiento, se presentó otra fuga de hidrógeno que involucraba una válvula de ventilación más arriba en el cohete, añadió Sarafin.

    “Esta es una máquina muy complicada, un sistema muy complicado, y todas esas cosas tienen que funcionar”, comentó el administrador de la NASA, Bill Nelson.

    Refiriéndose a los retrasos en el lanzamiento, dijo que “es solo parte del negocio espacial y es parte de un vuelo de prueba”.

    Cuando despegue, el cohete impulsará una cápsula para tripulación hasta ponerla en órbita alrededor de la Luna. La misión, de seis semanas de duración, debe terminar con el regreso de la cápsula a la Tierra.

    El cohete de 98 metros (322 pies) es el más potente que haya construido la NASA, incluso más que el Saturn V que llevó astronautas a la Luna hace medio siglo.


    El Departamento de Salud y Ciencias de The Associated Press recibe apoyo del Departamento de Educación Científica del Instituto Médico Howard Hughes. La AP es la única responsable de todo el contenido.

  • LANZAMIENTO DE LA MISIÓN ARTEMIS I DE LA NASA

    LANZAMIENTO DE LA MISIÓN ARTEMIS I DE LA NASA

    La NASA informa una «pausa no planificada» en el lanzamiento por un problema en un motor

    (Crédito: Joel Kowsky/NASA via Getty Images)

    La NASA compartió en sus redes sociales que el lanzamiento de la misión Artemis se encuentra en «una pausa no planificada», debido a que el equipo «trabaja en un problema con el motor número 3». 

    Horas antes se había informado que el equipo de lanzamiento detectó un problema con una purga de motor en uno de los cuatro motores del cohete y estaba trabajando para reconfigurarlo. Durante las purgas del motor, el hidrógeno circula por el motor para acondicionarlo para el lanzamiento. Tres de los cuatro motores están funcionando como se esperaba, pero el motor número 3 tiene un problema.

    ¿A qué hora es y cómo ver el lanzamiento de la misión Artemis I a la Luna?

    El cohete del Sistema de Lanzamiento Espacial de la NASA con la nave espacial Orión a bordo se ve encima de un lanzador móvil en la plataforma de lanzamiento 39B mientras continúan los preparativos para el lanzamiento, el viernes 26 de agosto de 2022, en el Centro Espacial Kennedy de la NASA en Florida.

    Por primera vez en 50 años, una nave espacial se prepara para emprender un viaje a la Luna. La misión Artemis I sin tripulación, que incluye el Space Launch System Rocket y la nave espacial Orion, tiene la meta de despegar este lunes entre las 8:33 a.m. ET y las 10:33 a.m. ET, desde el Centro Espacial Kennedy de la NASA en Florida.

    Y aunque no hay tripulación humana a bordo de la misión, es el primer paso del programa Artemis, cuyo objetivo es regresar a los humanos a la Luna y finalmente aterrizarlos en Marte.

    La nave espacial Orión entrará en una órbita retrógrada distante de la Luna y viajará 64.000 kilómetros (40.000 millas) más, yendo más lejos que cualquier nave espacial destinada a transportar humanos. Las tripulaciones viajarán a bordo de Artemis II en una trayectoria similar en 2024, y la primera mujer y el próximo hombre en aterrizar en la Luna están programados para llegar al polo sur lunar a fines de 2025 en la misión Artemis III.

    La agencia compartirá imágenes en vivo, así como una cobertura en inglés y español antes, durante y después del lanzamiento de Artemis I en su sitio web y en NASA TV. La transmisión comenzará a las 12 a.m. ET cuando se cargue el propulsor superfrío en el cohete SLS.

    El viaje de Orión durará 42 días mientras viaja a la Luna, gira alrededor de ella y regresa a la Tierra, recorriendo un total de 2,1 millones de kilómetros (1,3 millones de millas). La cápsula aterrizará en el Océano Pacífico frente a la costa de San Diego el 10 de octubre.

    Las cámaras dentro y fuera de Orión compartirán imágenes y videos a lo largo de la misión, incluidas vistas en vivo del experimento Callisto, que capturará una secuencia de un maniquí llamado Comandante Moonikin Campos sentado en el asiento del comandante. Si tienes un dispositivo habilitado para Amazon Alexa, puedes preguntarle sobre la ubicación de la misión todos los días.

    Qué significan las palabras que oirás durante el lanzamiento de Artemis I a la Luna

    La NASA vuelve a la Luna con la misión Artemis I

    Pocas cosas son más emocionantes que ver cómo una nave espacial despega de la plataforma de lanzamiento, tal como la misión Artemis I de la NASA se prepara para hacerlo este lunes.

    Pero si eres un observador casual, puede que pocas cosas sean más confusas que escuchar algunas de las jergas utilizadas por el control de la misión.

    Celebridades y espectadores de todo el mundo se reunirán en el Centro Espacial Kennedy de la NASA, en Florida, para ver cómo el nuevo cohete del Sistema de Lanzamiento Espacial y la nave Orión sin tripulación emprenden su viaje hacia la Luna.

    Y para los que no puedan acudir en persona, habrá transmisiones en directo en varias plataformas y se han organizado fiestas de observación en todo el país. Son muchas las personas que intentan distinguir el LH2 del LO2 y averiguar qué es el L menos.

    Para todos aquellos que no sean científicos de la NASA o astrofísicos aficionados, estos son algunos de los términos que podrán escuchar durante el histórico lanzamiento, y su significado.

    La jerga del despegue

    La NASA pretende lanzar el Artemis I entre las 8:33 y las 10:33 a.m. (hora del este) de este lunes, con ventanas de reserva el 2 y el 5 de septiembre en caso de mal tiempo o de retrasos. Si el lanzamiento es un «sí», significa que las cosas van por buen camino. Si es un «no», el lanzamiento puede aplazarse.

    A medida que los equipos de la misión avanzan en la cuenta regresiva, utilizarán frases y abreviaturas que pueden resultar desconocidas. Se espera escuchar «SLS» para indicar el cohete, en lugar de Space Launch System, y «nominal» para significar que las cosas son normales o van según lo previsto.

    Cuando el cohete se carga con oxígeno líquido criogénico (superfrío) e hidrógeno líquido para alimentar el despegue, la abreviatura es «LO2» para el oxígeno y «LH2» para el hidrógeno.

    Es muy probable que el equipo de lanzamiento de Artemis mencione «ICPS», que se refiere a la etapa de propulsión criogénica intermedia. Este segmento superior del cohete proporcionará a Orión la propulsión que necesita en el espacio después de que los dos cohetes impulsores de combustible sólido y la etapa central, o columna vertebral, del cohete se separen de la nave.

  • KATYA ECHAZARRETA SE CONVERTIRÁ ESTE SÁBADO EN LA PRIMER MEXICANA EN VIAJAR AL ESPACIO

    KATYA ECHAZARRETA SE CONVERTIRÁ ESTE SÁBADO EN LA PRIMER MEXICANA EN VIAJAR AL ESPACIO

    La joven ingeniera eléctrica, junto a otros cinco hombres, formará parte de la misión NS-21, el quinto vuelo tripulado de la empresa Blue Origin

    La ingeniera eléctrica Katya Echazarreta se convertirá  este sábado 04 de junio en la primera inmigrante mexicana y una de las mujeres más jóvenes en ir al espacio, cuando realice un viaje de 10 minutos a bordo de la misión New Shepard de la compañía privada Blue Origin.

    El lanzamiento del cohete NS-21 está programado para salir del puerto de lanzamiento Corn Ranch, en la ciudad de Van Horn, en Texas. Echazarreta, de 26 años, viajará junto a otros cinco tripulantes, todos hombres, entre ellos el ingeniero brasileño Víctor Correa Hespanha.

    En redes sociales compartió un video donde se prueba el traje que usará para su travesía fuera de la atmósfera terrestre.

    “Esta mañana haré una de las cosas más increíbles, me probaré mi traje por primera vez. Aquí está y es genial ver mi nombre escrito en él, aquí está Blue Origin en la manga, el parche y ahora me lo voy a probar”

    (Foto: Twitter/katvoltage)(Foto: Twitter/katvoltage)

    Al respecto, el titular de la Secretaría de Relaciones Exteriores (SRE), Marcelo Ebrard, la felicitó a través de su cuenta de Twitter: “Eres orgullo de México. ¡Enhorabuena!”, escribió.

    La originaria de Guadalajara, Jalisco, y quien se mudó a Estados Unidos cuando tenía siete años, hará historia como la primera mujer inmigrante y la más joven en salir del planeta.

    Echazarreta ha confesado que su adaptación al país fue difícil por las barreras del idioma. Sin embargo, el trabajo duro y la fuerte ética de trabajo que le inculcó su mamá la ayudaron a sobrepasar todos los obstáculos, según explicó en su blog personal.

    De esta forma, su mamá siempre la apoyó a seguir sus sueños y ella nunca perdió de vista su objetivo, pues desde que era pequeña sabía que una de sus metas era convertirse en astronauta, de acuerdo con lo que dijo para una entrevista con la CNN.

    La ingeniera asistió a un colegio comunitario en San Diego, California, y después logró transferirse a la Universidad de California Los Ángeles (UCLA), donde se graduó como ingeniería eléctrica. Logró ser una pasante en los Laboratorios de Propulsión de la NASA (JPL, por su sigla en inglés), y trabajó en cinco misiones con ellos, incluidas Perseverance y Europa Clipper.(Foto: Twitter/katvoltage)(Foto: Twitter/katvoltage)

    Cabe mencionar que fue elegida entre más de 7 mil aspirantes, viajará junto con Correa, el astronauta Evan Dick, el piloto Hamish Harding, el cofundador de Dream Variation Ventures, Jaison Robinson, y el explorador Victor Vescovo.

    El quinto vuelo de turismo espacial de la compañía Blue Origin estaba previsto para el viernes 20 de mayo, pero se postergó por problemas técnicos en las verificaciones finales del cohete New Shepard detectados dos días antes.

    Quiere apoyar a otros

    La futura astronauta, además, quiere que otras mujeres latinas científicas la vean como “una hermana mayor”, en quien pueden encontrar apoyo, ya que ella no tenía a quien recurrir a lo largo de su carrera.(Captura de pantalla: Twitter)

    (Captura de pantalla: Twitter)

    “A lo largo de mi camino en la escuela de ingeniería fui muy consciente de la falta de mujeres en el campo. Esto fue muy difícil para mí porque no tenía muchas personas a las que pudiera pedir consejo sobre varios temas”, indica en su blog.

    Por este motivo, quiere inspirar y ayudar a otros, pues incluso señaló que dedica su viaje a su país y a la comunidad latina: “Yo quiero enseñarles que sí podemos

  • SPACE TELESCOPE’S ‘GOLDEN EYE’ OPENS, LAST MAJOR HURDLE

    SPACE TELESCOPE’S ‘GOLDEN EYE’ OPENS, LAST MAJOR HURDLE

    By MARCIA DUNN

    CAPE CANAVERAL, Fla. (AP) — NASA’s new space telescope opened its huge, gold-plated, flower-shaped mirror Saturday, the final step in the observatory’s dramatic unfurling.

    The last portion of the 21-foot (6.5-meter) mirror swung into place at flight controllers’ command, completing the unfolding of the James Webb Space Telescope.

    “I’m emotional about it. What an amazing milestone. We see that beautiful pattern out there in the sky now,” said Thomas Zurbuchen, chief of NASA’s science missions.

    More powerful than the Hubble Space Telescope, the $10 billion Webb will scan the cosmos for light streaming from the first stars and galaxies formed 13.7 billion years ago. To accomplish this, NASA had to outfit Webb with the largest and most sensitive mirror ever launched — its “golden eye,” as scientists call it.

    Webb is so big that it had to be folded orgami-style to fit in the rocket that soared from South America two weeks ago. The riskiest operation occurred earlier in the week, when the tennis court-size sunshield unfurled, providing subzero shade for the mirror and infrared detectors.

    Flight controllers in Baltimore began opening the primary mirror Friday, unfolding the left side like a drop-leaf table. The mood was even more upbeat Saturday, with peppy music filling the control room as the right side snapped into place. After applauding, the controllers immediately got back to work, latching everything down. They jumped to their feet, exchanged high-fives and cheered from behind masks when the operation was finally complete 2 1/2 hours later, doing their best to remain socially distant because of the global surge in COVID-19 cases.

    “We have a deployed telescope on orbit, a magnificent telescope the likes of which the world has never seen,” Zurbuchen said, congratulating the team. “So how does it feel to make history, everybody? You just did it.”

    His counterpart at the European Space Agency, astronomer Antonella Nota, noted that after years of preparation, the team made everything look “so amazingly easy.”

    “This is the moment we have been waiting for, for so long,” she said.

    Webb’s main mirror is made of beryllium, a lightweight yet sturdy and cold-resistant metal. Each of its 18 segments is coated with an ultra thin layer of gold, highly reflective of infrared light. The hexagonal, coffee table-size segments must be adjusted in the weeks ahead so they can focus as one on stars, galaxies and alien worlds that might hold atmospheric signs of life.

    “It’s like we have 18 mirrors that are right now little prima donnas all doing their own thing, singing their own tune in whatever key they’re in, and we have to make them work like a chorus and that is a methodical, laborious process,” operations project scientist Jane Rigby told reporters.

    Webb should reach its destination 1 million miles (1.6 million kilometers) away in another two weeks; it’s already more than 667,000 miles (1 million kilometers) from Earth since its Christmas Day launch. If all continues to go well, science observations will begin this summer. Astronomers hope to peer back to within 100 million years of the universe-forming Big Bang, closer than Hubble has achieved.

    Project manager Bill Ochs stressed the team isn’t letting its guard down, despite the unprecedented successes of the past two weeks.

    “It’s not downhill from here. It’s all kind of a level playing field,” he said.

    ___

    The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content.

  • NASA photo reveals story of the fall of the meteorite that extinguished the dinosaurs

    NASA photo reveals story of the fall of the meteorite that extinguished the dinosaurs

    A Photograph Taken From Space By NASA Revealed Part Of The History That Occurred 66 Million Years Ago With The Fall Of A Meteorite In Chicxulub, Yucatán

    More than 66 million years ago, the Yucatán Peninsula, to be exact the Chicxulub port, was the scene where a meteorite fell that not only changed history but also destroyed a species that dominated the world, the dinosaurs.

    The meteorite was approximately 14 kilometers wide, which generated a great explosion when it fell, as well as creating a large crater of approximately 180 kilometers and bodies of water that are known today as cenotes.

    NASA recalled that the Chicxulub crater, which is now partially on land, is the best-preserved high-impact crater on Earth and has been buried under thick layers of limestone, however, the remains of the crater are still visible in the surface.

    Through a photograph, it is detailed that in front of the Yucatan coast there is an arc of 250 kilometers of sinkholes that marks the edge of the crater and, since it lacks water, it can be seen from Space.

    (IMAGE: picsaboutspace.com)

    “Because the rainwater is slightly acidic, the surface water dissolves the limestone bedrock and infiltrates it, creating dissolution wells, cenotes and caves, as well as the longest underground river in the world”, same that made known a few weeks ago by the environmental authorities of the entity.

    It is detailed that when those large layers of limestone erode, the calcareous sediments are washed away in the wide and shallow Yucatan shelf, so the natural color image, sediment eddies are visible off the north and west coast from the Bay of Campeche.

    The photograph shows how the sediments scatter light and this reflectivity gives the water its characteristic color when viewed from space.

    “When it floats close to the surface, the sediment appears dark brown, but as it sinks and disperses, the color changes to shades of green and light blue. When shallow coastal waters are stirred by winds, tides, storms or currents, the sediments on the seabed can become suspended again, ”he explains.

    Source: Yucatan a la mano

    The Yucatan Times Newsroom

  • ASTEROID LARGER THAN EMPIRE STATE BUILDING SET TO WHIZ BY EARTH THIS WEEKEND

    ASTEROID LARGER THAN EMPIRE STATE BUILDING SET TO WHIZ BY EARTH THIS WEEKEND

    Asteroid taller than Empire State Building to pass by Earth • The ...

    LOS ANGELES — An asteroid which NASA estimates may be larger than the Empire State Building is headed in Earth’s direction and expected to pass near our planet on Saturday, June 6.

    While NASA’s Jet Propulsion Laboratory (JPL) may have labeled asteroid, named 163348 (2002 NN4), a “potentially hazardous asteroid” due to its predicted proximity to Earth, the celestial planet killer will actually keep a distance of over 3.1 million miles when it passes.

    2002 NN4, is expected to pass by on Saturday 6 June at a velocity of 11,146km/s.

    According to SpaceReference.org, 2002 NN4 is a relatively small-sized space rock, measuring between 0.254 and 0.568 kilometers in diameter. New York’s Empire State Building is approximately 0.4432 kilometers in height.

    2002 NN4 is small in “absolute terms,” compared to other asteroids like (52768) 1998 OR2 which passed by Earth in April this year coming in at over 6,500 feet and passing Earth by nearly 4 million miles away, according to Smithsonian Magazine.

    But 2002 NN4, which is labeled as an Aten-class Asteroid, meaning it is among a class of asteroids with an orbit around the Sun that could bring it in close proximity with Earth, is still larger than 90 percent of asteroids.

    There are currently an estimated 1,679 Aten-class Asteroids in a database of 945,994, according to Spacereference.org.

    NASA continuously tracks asteroids and comets that are expected to make relatively close approaches to Earth, offering a widget that displays the next five Earth approaches to within 4.6 million miles (7.5 million kilometers or 19.5 times the distance to the moon).

    NASA says that an object larger than about 150 meters (492 feet) that can approach the Earth to within 4.6 million miles is deemed a potentially hazardous object.

  • DRAGON DOCKS AT INTERNATIONAL SPACE STATION 19 HOURS AFTER NASA-SPACEX LAUNCH

    DRAGON DOCKS AT INTERNATIONAL SPACE STATION 19 HOURS AFTER NASA-SPACEX LAUNCH

    Dragon is docking after a 19-hour journey.

    By Emily Shapiro,Ella Torres,Catherine Thorbecke and Bill Hutchinson ABC News

    Astronauts on board the Dragon successfully docked at the International Space Station Sunday morning, 19 hours after the successful NASA-SpaceX launch.

    At 10:16 a.m. Eastern time, the Dragon spacecraft carrying veteran NASA astronauts Robert Behnken and Douglas Hurley rendezvoused with the space station 262 statute miles above the border of China and Mongolia.

    «Docking soft capture. We have docking,» NASA mission control in Houston announced.

    The accomplishment came at 18 hours and 58 minutes after the SpaceX rocket propelled the astronauts into a new chapter of space exploration, marking the first time a privately funded space program teamed with NASA on such an endeavor.

    NASA TV via AP The SpaceX Dragon crew capsule, with NASA astronauts Doug Hurley and Robert Behnken aboard, docks with the International Space Station, May 31, 2020.The SpaceX Dragon crew capsule, with NASA astronauts Doug Hurley and Robert Behnken aboard, docks with the International Space Station, May 31, 2020.NASA TV via AP

    Shortly after linking up with the space station, 12 latches of the Dragon were deployed creating an airtight seal that will allow Behnken and Hurley to entered a vestibule and go into the space station.

    «It’s been a real honor to be just a small part of this nine-year endeavor since the last time a United States space ship docked with the International Space Station,» Hurley said after the historic accomplishment.

    Flight director Zeb Scoville, who was at mission control in Houston, congratulated the crew.

    NASA TV via AP The SpaceX Dragon crew capsule, with NASA astronauts Doug Hurley and Robert Behnken aboard, docks with the International Space Station, May 31, 2020.The SpaceX Dragon crew capsule, with NASA astronauts Doug Hurley and Robert Behnken aboard, docks with the International Space Station, May 31, 2020.NASA TV via AP

    »Bravo on a magnificent moment in spaceflight history, and on the start of a new journey that has changed the face of space travel in this new era of space transportation,” Scoville said.

    Speeding into orbit at more than 17,500 mph, the Dragon spacecraft, now named Endeavour, was able to track down the International Space Station in about the same amount of time it takes for a commercial flight to travel from New York to Sydney, Australia. But the docking procedure was done slowly and cautiously.

    Jim Bridenstine, NASA administrator, said he was «so proud» after Saturday’s launch.

    John Raoux/AP SpaceX Falcon 9, with NASA astronauts Doug Hurley and Bob Behnken in the Dragon crew capsule, lifts off from Pad 39-A at the Kennedy Space Center in Cape Canaveral, Fla., May 30, 2020.SpaceX Falcon 9, with NASA astronauts Doug Hurley and Bob Behnken in the Dragon crew capsule, lifts off from Pad 39-A at the Kennedy Space Center in Cape Canaveral, Fla., May 30, 2020.John Raoux/AP

    «For the first time in nine years, we have now launched American astronauts on American rockets from American soil. I’m so proud of the @NASA and @SpaceX team for making this moment possible,» Bridenstine tweeted.

    President Donald Trump and Vice President Mike Pence were on hand at the Kennedy Space Center in Cape Canaveral, Florida, to watch the launch on Saturday afternoon. The blast-off was initially scheduled to take place on Wednesday but was postponed due to weather conditions.

    «It is absolutely our honor to be part of this huge effort to get the United States back in the launch business. We’ll talk to you from orbit,» Hurley said minutes before launch.

  • SPACEX CREW DRAGON ASTRONAUTS READY FOR SECOND LAUNCH ATTEMPT SATURDAY, WEATHER PERMITTING

    SPACEX CREW DRAGON ASTRONAUTS READY FOR SECOND LAUNCH ATTEMPT SATURDAY, WEATHER PERMITTING

    CAPE CANAVERAL, Fla. (AP) — Despite more storms in the forecast, two NASA astronauts arrived at the launch pad Saturday for a second attempt at a history-making ride into orbit aboard a rocket ship built by Elon Musk’s SpaceX company.

    The SpaceX Falcon 9, with Dragon crew capsule on top of the rocket, sits on Launch Pad 39-A, Friday, May 29, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. Two astronauts will fly on the SpaceX Demo-2 mission to the International Space Station scheduled for launch on Saturday, May 30. For the first time in nearly a decade, astronauts will blast into orbit aboard an American rocket from American soil, a first for a private company. (AP Photo/David J. Phillip)

    With the flight already delayed three days by bad weather, forecasters put the odds of acceptable conditions at 50-50 for the 3:22 p.m. liftoff of the 270-foot Falcon 9 rocket in what would be the first launch of astronauts into orbit by a private company.

    NASA astronauts Douglas Hurley, holds the hand of his wife Karen Nyberg as their son Jack, 10 looks on, after Hurley and astronaut Robert Behnken walked out of the Neil A. Armstrong Operations and Checkout Building on their way to Pad 39-A, at the Kennedy Space Center in Cape Canaveral, Fla., Saturday, May 30, 2020. The two astronauts will fly on a SpaceX test flight to the International Space Station. For the first time in nearly a decade, astronauts will blast into orbit aboard an American rocket from American soil, a first for a private company. (AP Photo/John Raoux)

    It would also be NASA’s first human spaceflight launched from U.S. soil in nearly a decade.

    In this image provided by NASA, a SpaceX Falcon 9 rocket, with the company’s Dragon crew capsule onboard, is illuminated on the launch pad at Launch Complex 39A as preparations continue for NASA’s SpaceX Demo-2 mission, Saturday, May 30, 2020, at the Kennedy Space Center in Cape Canaveral, Fla. Despite more storms in the forecast, SpaceX pressed ahead Saturday in its historic attempt to launch astronauts for NASA, a first by a private company. (Joel Kowsky/NASA via AP)

    Doug Hurley and Bob Behnken pulled on their angular, white-and-black spacesuits with help from technicians wearing masks, gloves and black hoods that made them look like ninjas.

    This combination of undated photos made available by SpaceX shows NASA astronauts Doug Hurley, left, and Bob Behnken in their spacesuits at SpaceX headquarters in Hawthorne, Calif. On Wednesday, May 27, 2020, They are scheduled to board a SpaceX Dragon capsule atop a SpaceX Falcon 9 rocket and, equipment and weather permitting, shoot into space. It will be the first astronaut launch from NASA’s Kennedy Space Center since the last shuttle flight in 2011. (SpaceX via AP)

    Before setting out for the launch pad in a gull-wing Tesla SUV — another Musk product — Behnken pantomimed a hug of his 6-year-old son, Theo, and said: “Are you going to listen to Mommy and make her life easy?” Hurley blew kisses to his 10-year-old son and wife.

    NASA astronauts Douglas Hurley, left, and Robert Behnken wave while seated in a Tesla SUV on their way to Pad 39-A, at the Kennedy Space Center in Cape Canaveral, Fla., Saturday, May 30, 2020. The two astronauts will fly on a SpaceX test flight to the International Space Station. For the first time in nearly a decade, astronauts will blast into orbit aboard an American rocket from American soil, a first for a private company. (AP Photo/John Raoux)

    SpaceX and NASA managers monitored the weather not just at Kennedy Space Center but all the way up the Eastern Seaboard and across the North Atlantic to Ireland. Waves and wind need to be within certain limits in case the astronauts have to make an emergency splashdown on the way to orbit.

    NASA astronauts Douglas Hurley, left, and Robert Behnken walk out of the Neil A. Armstrong Operations and Checkout Building on their way to Pad 39-A, at the Kennedy Space Center in Cape Canaveral, Fla., Saturday, May 30, 2020. The two astronauts will fly on a SpaceX test flight to the International Space Station. For the first time in nearly a decade, astronauts will blast into orbit aboard an American rocket from American soil, a first for a private company. (AP Photo/John Raoux)

    Their destination is the International Space Station, a 19-hour flight away.

    Ever since the space shuttle was retired in 2011, NASA has relied on Russian spaceships launched from Kazakhstan to take U.S. astronauts to and from the space station.

    “I would be lying to you if I told you I wasn’t nervous,” NASA Administrator Jim Bridenstine said before the launch attempt. “We want to do everything we can to minimize the risk, minimize the uncertainty, so that Bob and Doug will be safe.”

    Wednesday’s countdown of the rocket and its bullet-shaped Dragon capsule was halted at just under 17 minutes because of the threat of lightning.

    President Donald Trump and Vice President Mike Pence planned to return for the second launch attempt.

    NASA tried to discourage spectators because of the coronavirus outbreak and severely limited the number of employees, visitors and journalists inside Kennedy Space Center. At the center’s newly reopened tourist stop, though, all 4,000 tickets for the launch were snapped up in a few hours.

    And by early morning, spectators began lining the area’s beaches and roads. Signs along the main beach drag urged “Godspeed.”

    Among the spectators was Neil Wight, a machinist from Buffalo, New York, who staked out a view of the launch pad from a park in Titusville.

    “It’s pretty historically significant in my book, and a lot of other people’s books. With everything that’s going on in this country right now, it’s important that we do things extraordinary in life,” Wight said. “We’ve been bombarded with doom and gloom for the last six, eight weeks, whatever it is, and this is awesome. It brings a lot of people together.”

    NASA hired SpaceX and Boeing in 2014 to taxi astronauts to and from the space station, under contracts totaling $7 billion. Both companies launched their crew capsules last year with test dummies. SpaceX’s Dragon aced all of its objectives, while Boeing’s Starliner capsule ended up in the wrong orbit and almost was destroyed because of multiple software errors.

    As a result, the first Starliner flight carrying astronauts isn’t expected until next year.