Good morning and welcome to live blog coverage of NASA’s SpaceX Crew-2 mission — the second crew rotation flight and the first with two international crew members on a U.S. commercial spacecraft with astronauts to the space station. Launch is scheduled for 5:49 a.m. EDT from the historic Launch Complex 39A at Kennedy Space Center.
Here at Kennedy, a SpaceX Falcon 9 rocket, topped by the company’s Crew Dragon spacecraft — named Endeavour by the crew — awaits liftoff early this morning. NASA astronauts Shane Kimbrough and Megan McArthur, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet, will fly to the International Space Station for a six-month science mission.
The countdown is proceeding according to schedule. At the Florida spaceport’s Neil A. Armstrong Operations and Checkout Building, the astronauts have eaten and will undergo medical checks and get a weather briefing before suiting up.
Stay with us as the countdown continues. We’ll keep you updated on the key milestones throughout this historic mission. Starting at 1:30 a.m. EDT, on NASA Television and the agency’s website, there will be continuous live coverage of important Crew-2 activities.
Launch of NASA’s SpaceX Crew-2 mission with astronauts to the International Space Station is on track for Friday, April 23, at 5:49 a.m. EDT. The SpaceX Falcon 9 rocket with Crew Dragon spacecraft will lift off from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.
NASA astronauts Shane Kimbrough and Megan McArthur, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet will fly to the International Space Station for a six-month science mission. NASA TV coverage of Crew-2 launch preparations and liftoff will begin at 1:30 a.m. Friday, April 23. The Crew Dragon is scheduled to dock to the space station Saturday, April 24, at approximately 5:10 a.m. EDT.
For an April 23 launch, the U.S. Space Force 45th Weather Squadron continues to predict a 90% chance of favorable weather conditions at the launch pad for liftoff based on Falcon 9 Crew Dragon launch weather criteria. The primary weather concerns for the launch area will be flight through precipitation from isolated, low-topped coastal showers and onshore flow. Conditions continue to improve along the flight path and recovery area for the mission.
Today, Thursday, April 22, is Earth Day. To commemorate this day, NASA is hosting Earth Day in Space. Singer-songwriterShawn Mendes will join five astronauts living and working aboard the International Space to discuss how we’re all #ConnectedByEarth, asking questions from young people around the world about Earth Day, climate change and how the astronauts study Earth from space.
The event will feature NASA astronaut Mark Vande Hei, who recently arrived to the space station aboard a Soyuz, joining NASA astronauts Mike Hopkins, Victor Glover, Shannon Walker, and Japan Aerospace Exploration Agency astronaut Soichi Noguchi, the Crew-1 team who arrived last November. It will air live on NASA Television, the NASA app, and the agency’s YouTube channel and website at 11 a.m. EDT April 22.
The Crew-1 astronauts are scheduled to depart the space station at 7:05 a.m. Wednesday, April 28. They will participate in their final news conference aboard the microgravity laboratory at 12:30 p.m. EDT Monday, April 26, about their upcoming return to Earth. Media wishing to participate by telephone must call NASA’s Johnson Space Center’s newsroom at 281-483-5111 to RSVP no later than 5 p.m. Friday, April 23. The news conference will air live on NASA Television, the NASA app, and the agency’s website. Those following the briefing on social media may ask questions using #AskNASA.
Crew-1 worked on a number of experiments as part of Expedition 64 to the International Space Station, including tissue chips that mimic the structure and function of human organs to understand the role of microgravity on human health and diseases, and translate those findings to improve human health on Earth. Astronauts also grew radishes in different types of light and soils as part of ongoing efforts to produce food in space and tested a new system to remove heat from spacesuits.
With the countdown clock and Launch Pad 39A serving as a backdrop, acting NASA Administrator Steve Jurczyk participated in a briefing for the Crew-2 mission at the agency’s Kennedy Space Center in Florida on Wednesday, April 21, at 8:30 a.m. EDT.
The briefing came after Crew-2’s launch was rescheduled to Friday, April 23, at 5:49 a.m. EDT, because of unfavorable weather conditions along the flight path. Although conditions around the launch site were expected to be favorable for a Thursday, April 22, liftoff, mission teams also must consider conditions along the flight path and recovery area in the unlikely event of a launch escape.
“We’re now scheduled for ‘go’ on Friday and the crew is ready,” said Acting NASA Administrator Steve Jurczyk. “I could not be more proud of the Commercial Crew Program, the SpaceX and NASA teams, and what they’ve been able to do to enable reliable, safe, effective transportation to and from space. We are looking forward to a great launch.”
Crew-2 is the second crew rotation flight of a U.S. commercial spacecraft with astronauts to the space station and the first carrying two international crew members. Mission astronauts Shane Kimbrough and Megan McArthur of NASA, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide and ESA (European Space Agency) astronaut Thomas Pesquet, will head to the International Space Station for a six-month science mission in the Crew Dragon spacecraft, which will launch on the SpaceX Falcon 9 rocket from Launch Complex 39A.
“On behalf of JAXA, I’d like to express my gratitude to the launch team,” said Hiroshi Sasaki, vice president and director general, JAXA’s Human Spaceflight Technology Directorate. “Last night, I spoke with Akihiko Hoshide, and he is ready for launch. I am excited that two Japanese astronauts – Akihiko Hoshide and Soichi Noguchi – will meet together at the International Space Station. I’m looking forward to the Crew-2 launch and wishing them great success.”
The crew will conduct science and maintenance during their six-month stay aboard the space station and will return no earlier than Oct. 31. Adding more crew members aboard the microgravity laboratory increases the time available for scientific activities. The November 2020 addition of the Crew-1 astronauts more than doubled crew hours spent on science research and support activities, and Crew-2 will continue the important investigations and technology demonstrations that are preparing for future Artemis missions to the Moon, helping us improve our understanding of Earth’s climate, and improving life on our home planet.
An important scientific focus on this expedition is continuing a series of Tissue Chips in Space studies. Tissue chips are small models of human organs containing multiple cell types that behave much the same as they do in the body. Another important element of Crew-2’s mission is augmenting the station’s solar power system by installing the first pair of six new ISS Roll-out Solar Arrays (iROSA).
“It’s an exciting time for us,” said Frank de Winne, manager, International Space Station Program. “We will have much more time to do research, science, but also technology development that we will need for the future of the Artemis program and for the future exploration of our solar system.”
Crew Dragon will deliver more than 500 pounds of cargo, as well as new science hardware and experiments, including CHIME, a university student-led investigation to study possible causes for suppressed immune response in microgravity.
For an April 23 launch, the U.S. Space Force 45th Weather Squadron predicts a 90% chance of favorable weather conditions at the launch pad for liftoff based on Falcon 9 Crew Dragon launch weather criteria. The primary weather concerns for the launch area will be liftoff winds. Conditions also are expected to improve along the flight path and recovery area for the mission.
NASA TV coverage of Crew-2 launch preparations and liftoff will begin at 1:30 a.m. Friday, April 23. The Crew Dragon is scheduled to dock to the space station Saturday, April 24, at approximately 5:10 a.m. EDT.
NASA and SpaceX now are targeting 5:49 a.m. EDT Friday, April 23, for the launch of the agency’s Crew-2 mission to the International Space Station due to unfavorable weather conditions along the flight path on Thursday.
Although conditions around the launch site were expected to be favorable for liftoff, mission teams also must consider conditions along the flight path and recovery area in the unlikely event of a launch escape.
For a launch April 23, the U.S. Space Force 45th Weather Squadron predicts a 90% chance of favorable weather conditions at the launch pad for liftoff of the Crew-2 mission based on Falcon 9 Crew Dragon launch weather criteria. Conditions also are expected to improve along the flight path and recovery area for the mission. The primary weather concerns for the launch area will be liftoff winds.
NASA’s SpaceX Crew-2 mission coverage is as follows (all times Eastern):
Wednesday, April 21 8:30 a.m. – Administrator Countdown Clock Briefing with the following participants:
Steve Jurczyk, acting NASA administrator
Bob Cabana, Kennedy center director
Hiroshi Sasaki, vice president and director general, JAXA’s Human Spaceflight Technology Directorate
Frank de Winne, manager, International Space Station Program, ESA
NASA astronaut Jasmin Moghbeli
9:15 a.m. – NASA Social Event on the Kennedy Space Center’s Facebook and YouTube accounts.
Friday, April 23 1:30 a.m. – NASA Television launch coverage begins. NASA Television will have continuous coverage, including docking, hatch opening, and welcome ceremony.
8 a.m. (approximately) – Postlaunch news conference with the following participants:
Steve Jurczyk, acting NASA administrator
Kathy Lueders, associate administrator, Human Exploration and Operations Mission Directorate, NASA Headquarters
Hiroshi Sasaki, vice president and director general, JAXA’s Human Spaceflight Technology Directorate
Frank de Winne, manager, International Space Station Program, ESA
SpaceX representative
Following a launch Friday, the Crew Dragon carrying NASA astronauts Shane Kimbrough and Megan McArthur, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet is scheduled to dock to the space station at about 5:10 a.m. Saturday, April 24.
With arrival of Crew-2 Saturday, NASA and SpaceX will continue to target the undocking and return to Earth of Crew-1 for Wednesday, April 28, after an approximate four-day shift change. Crew-1 NASA astronauts Michael Hopkins, Victor Glover, and Shannon Walker, along with JAXA astronaut Soichi Noguchi, will undock Crew Dragon Resilience at 5 a.m. and splashdown off the coast of Florida 7.5 hours later at about 12:35 p.m., after 164 days in space. Their return date and time are dependent on having a healthy spacecraft and favorable weather in the selected splashdown zone.
Follow along with launch activities and get more information about the mission at: http://www.nasa.gov/crew-2.
Learn more about commercial crew and space station activities by following @Commercial_Crew, @space_station, and @ISS_Research on Twitter as well as the Commercial Crew Facebook, ISS Facebook and ISS Instagram accounts.
NASA’s virtual guests for the agency’s Crew-2 mission have shared more than 15,000 messages for the astronauts scheduled to launch to the International Space Station on April 22 — Earth Day. The messages hail from around the world in over seven languages with safety as one of most popular sentiments for the crew.
Virtual guests also frequently mentioned that they wish the crew “all the best” and they hope the crew takes time to “enjoy” the mission. If you’d like to be a virtual guest for this mission you can register until April 22. You can also join this list to learn about future opportunities.
Remember to tune into the launch on NASA Television, the agency’s website and the NASA app beginning at 2 a.m. EDT Thursday, Apr. 22, to watch live coverage of the launch of NASA’s SpaceX Crew-2 mission.
In addition to the launch, NASA is celebrating Earth Day through games, speakers, and activities. Be #ConnectedByEarth on social media. Check out these resources and more at www.nasa.gov/earth-day-2021.
Early this morning, Saturday, April 17, the SpaceX Falcon 9 rocket that will launch the Crew Dragon spacecraft and Crew-2 astronauts to the International Space Station completed a key prelaunch milestone: the integrated static fire. Standing on the launch pad at Launch Complex 39A at the agency’s Kennedy Space Center in Florida, the rocket’s nine Merlin first-stage engines were fired for seven seconds for this critical but routine test.
NASA astronauts Shane Kimbrough and Megan McArthur, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide, and ESA (European Space Agency) astronaut Thomas Pesquet, will launch aboard the Crew Dragon, named Endeavour, atop the Falcon 9, on the second crew rotation mission to the space station as part of NASA’s Commercial Crew Program. Liftoff is scheduled for Thursday, April 22, at 6:11 a.m. EDT from Launch Pad 39A.
At 9:45 a.m., the Crew-2 astronauts will answer questions about their mission during a live event that will air on NASA Television, the NASA app, and the website.
The astronauts who will fly on NASA’s SpaceX Crew-2 mission to the International Space Station are now en route to the agency’s Kennedy Space Center in Florida to begin final launch preparations.
Crew-2 mission astronauts Shane Kimbrough and Megan McArthur of NASA, along with JAXA (Japan Aerospace Exploration Agency) astronaut Akihiko Hoshide and ESA (European Space Agency) astronaut Thomas Pesquet, departed by plane from Ellington Field near the agency’s Johnson Space Center in Houston for the short flight to the launch site. The crew is expected to arrive at the Launch and Landing Facility at Kennedy just before 12:45 p.m. EDT.
Crew-2 astronauts will be greeted at arrival to the launch site by leadership from NASA, JAXA, and ESA for a brief welcome ceremony targeted for approximately 12:45 p.m. EDT. The event is scheduled to broadcast live, if weather permits, on NASA Television and the agency’s website.