NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, and Kjell Lindgren, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Robert Hines answers questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Kjell Lindgren greets local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Robert Hines signs autographs for local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines pose for a group photo with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA Deputy Associate Administrator for STEM Engagement Kris Brown delivers opening remarks prior to an event with NASA astronauts Jessica Watkins, Kjell Lindgren, and Robert Hines at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

Local students watch a video presentation during an event with NASA astronauts Jessica Watkins, Kjell Lindgren, and Robert Hines at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA Spanish Communications Lead María-José Viñas Garcia delivers opening remarks prior to an event with NASA astronauts Jessica Watkins, Kjell Lindgren, and Robert Hines at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Jessica Watkins participates in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Jessica Watkins signs autographs for local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Jessica Watkins signs autographs for local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

A scale model of NASA’s Space Launch System (SLS) is seen in the foreground during an event with NASA astronauts Jessica Watkins, Robert Hines, and Kjell Lindgren at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

Local students watch a video presentation during an event with NASA astronauts Jessica Watkins, Kjell Lindgren, and Robert Hines at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Jessica Watkins signs autographs for local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, Kjell Lindgren, center, and Robert Hines, right, answer questions from students during an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines pose for a group photo with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Kjell Lindgren, Jessica Watkins, and Robert Hines participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Kjell Lindgren signs autographs for local students following an event at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)

NASA astronauts Jessica Watkins, left, and Robert Hines, right, participate in STEM demonstrations with local students at the Martin Luther King Jr Memorial Library, Thursday, March 30, 2023, in Washington. Lindgren, Hines, and Watkins spent 170 days in space as part of Expeditions 67 and 68 aboard the International Space Station. Photo Credit: (NASA/Keegan Barber)