The crew access arm retracts from Space Launch Complex-40 at Cape Canaveral Space Force Station for NASA’s SpaceX Crew-9 mission to the International Space Force Station in Florida on Saturday, Sept. 28, 2024. Photo credit: NASA
The launch director just gave a “go” for the crew access arm to retract away from SpaceX’s Dragon spacecraft and Falcon 9 rocket.
A few minutes later, Dragon’s launch escape system will be armed to allow the Crew-9 crew members to escape safely in the unlikely event of an anomaly from the moment the SpaceX Falcon 9 rocket lifts off until the Dragon spacecraft reaches orbit.
Liftoff One Hour Away for NASA’s SpaceX Crew-9 Launch
A SpaceX Dragon spacecraft atop a Falcon 9 rocket is vertical at Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida for NASA’s Crew-9 mission to the International Space Station on Saturday, Sept. 28, 2024. Photo credit: NASA
The SpaceX closeout team has left the crew access arm, which will soon retract from the Dragon spacecraft. Launch, set for 1:17 p.m. EDT, is now less than an hour away.
Launch weather officers with the U.S. Space Force’s 45th Weather Squadron are watching lightning, rain, and wind in the area, but launch currently remains a “go” for liftoff from Space Launch Complex-40 at Cape Canaveral Space Force Station.
It will take 28.5 hours for NASA astronaut Nick Hague, commander, and Roscosmos cosmonaut Aleksandr Gorbunov, mission specialist, to reach the International Space Station and dock to the Harmony module’s forward port. Once there, they’ll be greeted by nine members of the Expedition 72 crew. There will be a brief handover period before NASA’s SpaceX Crew-8 members, NASA astronauts Matthew Dominick, Mike Barratt, and Jeanette Epps, as well as Roscosmos cosmonaut Alexander Grebenkin return to Earth. The four-person crew has been at the orbiting laboratory since March 5, when they docked to the orbital outpost aboard the SpaceX Dragon Endeavour spacecraft.
The space station will be traveling over northeast Bulgaria during liftoff.
NASA’s SpaceX Crew-9 Mission to Perform Science Experiments
NASA astronaut and Expedition 65 Flight Engineer Mark Vande Hei peers into near-infrared medical-imaging gear, or optical coherence tomography, for detailed views of his retina as part of regularly scheduled eye checks aboard the International Space Station on May 12, 2021. Photo credit: NASA
NASA astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov will be busy during their roughly five-month mission at the International Space Station.
The Crew-9 members will conduct more than 200 science investigations involving blood clotting studies, moisture effects on plants grown in space, and vision changes in astronauts.
Researchers want to determine how environmental conditions affect platelets and megakaryocytes, which are large cells found in bone marrow. Both play important roles in blood clotting and immune response, and the results could provide answers for humans in space and here on Earth.
The crew also will study the vision changes that often occur while astronauts are in orbit and if a daily vitamin B supplement will make a difference. It’s still unknown why some astronauts experience vision changes and others do not, but researchers have been studying it for years.
Members of Crew-9 will participate in a spacewalk to repair a telescope attached to the outside of the space station.
Hague and Gorbunov are scheduled to launch to the space station at 1:17 p.m. EDT aboard a SpaceX Dragon spacecraft and Falcon 9 rocket from Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida.
NASA’s SpaceX Crew-9 Mission on Track for Saturday Launch
A prelaunch news briefing takes place inside the John Holliman Auditorium of the News Center at NASA’s Kennedy Space Center in Florida on Friday, Sept. 27, 2024, ahead of NASA’s SpaceX Crew-9 mission to the International Space Station. Photo credit: NASA
NASA’s SpaceX Crew-9 two-man crew is ready for their mission to the International Space Station.
NASA and mission partners held a prelaunch news conference on Sept. 27 and the 1:17 p.m. EDT Saturday, Sept. 28, liftoff remains on schedule from Space Launch Complex-40 at Cape Canaveral Space Force Station in Florida.
Launch weather officers with Cape Canaveral Space Force Station’s 45th Weather Squadron predict a 55% of favorable weather conditions for the launch. The cumulus cloud rule, flight through precipitation, and surface electric fields rule are the primary weather concerns.
SpaceX’s Dragon spacecraft and Falcon 9 rocket are back on the pad and cargo loading will soon begin. Both rolled back to the hangar on Wednesday to protect from Hurricane Helene.
Crew-9 will be the first human spaceflight mission to launch from the pad, carrying NASA astronaut Nick Hague, commander, and Roscosmos cosmonaut Aleksandr Gorbunov, mission specialist, to the orbiting laboratory for a five-month science mission.
“We moved to a different pad, Space Launch Complex-40, and it’s great to have that flexibility to be able to use Launch Pad 39A or Space Launch Complex-40 for launches,” said Ken Bowersox, associate administrator, NASA’s Space Operations Mission Directorate. “I’m so proud of the commercial crew team, the International Space Station team, and our partners at SpaceX and the work they’ve done to prepare for launch.”
NASA’s broadcast coverage of the Crew-9 launch begins at 9:10 a.m. on Saturday, Sept. 28. Watch live on NASA+ and the agency’s website. Learn how to stream NASA content through a variety of platforms, including social media.
A SpaceX Falcon 9 rocket with the company’s Dragon spacecraft on top is seen Tuesday, Sept. 24, 2024, on the launch pad at Space Launch Complex-40 as preparations continue for the Crew-9 mission at Cape Canaveral Space Force Station in Florida. Photo credit: NASA/Keegan Barber
In less than 24 hours, Crew-9 crew members NASA astronaut Nick Hague, commander, and Roscosmos cosmonaut Aleksandr Gorbunov, mission specialist, will launch to the International Space Station.
Leading up to liftoff, NASA and SpaceX plan to host a prelaunch news conference from the agency’s Kennedy Space Center in Florida on Friday, Sept. 27, at 5 p.m. EDT with the following participants:
NASA Associate Administrator Jim Free
Ken Bowersox, associate administrator, NASA’s Space Operations Mission Directorate
Steve Stich, manager, NASA’s Commercial Crew Program
Dina Contella, deputy manager, NASA’s International Space Station Program
Jennifer Buchli, chief scientist, NASA’s International Space Station Program
William Gerstenmaier, vice president, Build & Flight Reliability, SpaceX
Brian Cizek, launch weather officer, 45th Weather Squadron, Cape Canaveral Space Force Station
Watch the event live on NASA+ and the agency’s website. Learn how to stream NASA content through a variety of platforms, including social media.
Launch of the Crew-9 mission is targeted for 1:17 p.m. EDT on Saturday, Sept. 28, aboard SpaceX’s Dragon spacecraft and Falcon 9 rocket from Space Launch Complex-40 at Cape Canaveral Space Force Station. This is the first time a human spaceflight mission will launch from the pad.