NASA astronauts Butch Wilmore and Suni Williams wave as they prepare to depart the Neil A. Armstrong Operations and Checkout Building at Cape Canaveral Space Force Station in Florida to board the Boeing CST-100 Starliner spacecraft on June 5. Miguel J. Rodriguez Carrillo/AFP via Getty Images hide caption
In this photo provided by NASA, Boeing Crew Flight Test astronauts Butch Wilmore (left) and Suni Williams pose for a portrait inside the vestibule between the forward port on the International Space Station's Harmony module and Boeing's Starliner spacecraft on June 13. NASA/via AP hide caption
The Boeing Starliner spacecraft prepares to dock with the International Space Station for the first time on June 6, 2024. (NASA via AP) NASA/AP hide caption
Astronaut Wendy B. Lawrence was aboard the the Space Shuttle Endeavour for the STS-67/ASTRO-2 mission when it launched March 2nd, 1995. NASA hide caption
Astronaut Wendy B. Lawrence was aboard the the Space Shuttle Endeavour for the STS-67/ASTRO-2 mission when it launched March 2nd, 1995. NASA hide caption
Boeing's Starliner capsule atop an Atlas V rocket is seen at Space Launch Complex 41 at the Cape Canaveral Space Force Station on May 7, a day after its mission to the International Space Station was scrubbed because of an issue with a pressure regulation valve. John Raoux/AP hide caption
In March 2021, mission controllers in Houston used the Canadarm2 robotic arm to release an external pallet packed with old nickel-hydrogen batteries from the International Space Station. Three years later, part of that assembly struck a house in Naples, Fla. NASA hide caption
NASA astronaut and Expedition 70 Flight Engineer Loral O'Hara is pictured working with the Microgravity Science Glovebox, a contained environment crew members use to handle hazardous materials for various research investigations in space. NASA hide caption
The four members of NASA's Crew-7 mission pose for a portrait inside their crew quarters on the International Space Station. Clockwise from bottom are, astronauts Jasmin Moghbeli, Andreas Mogensen, Satoshi Furukawa, and Loral O'Hara. The SpaceX Crew Dragon capsule splashed down at 5:48 a.m. ET on Tuesday, March 12, 2024 to end a six-month mission. NASA hide caption
A SpaceX Falcon 9 rocket with the Crew Dragon Endeavour capsule carrying the Crew-8 mission launches from launch pad 39A at NASA's Kennedy Space Center in Florida on March 3, 2024. Chandan Khanna/AFP via Getty Images hide caption
NASA astronaut Victor Glover will be making his second flight to space as the pilot of the Artemis II mission. Riley McClenaghan/NASA hide caption
Sean Crimmins, a senior in engineering at the University of Nebraska, loads the robotic arm into its case on Aug. 11 before a shake test. Craig Chandler/University of Nebraska Office of University Communication and Marketing hide caption
In this image from video provided by NASA, the 11 International Space Station crew members representing Expedition 70 (red shirts) and Axiom Space 3 (dark blue suits) crews gather for a farewell ceremony calling down to mission controllers on Earth on Friday, Feb. 2, 2024. NASA via AP hide caption
A SpaceX Falcon 9 rocket with its Crew Dragon capsule launches from pad LC-39A during Axiom Space's Ax-3 Mission at the Kennedy Space Center, in Cape Canaveral, Fla., on January 18, 2024. Chandan Khanna/AFP via Getty Images hide caption
NASA astronaut Frank Rubio checks tomato plants growing inside the International Space Station for a space botany study. Koichi Wakata/Japan Aerospace Exploration Agency/NASA hide caption