NASA Administrator Jim Bridenstine, left, helps place a lei at the Space Shuttle Columbia Memorial with Kristy Carroll, center, and daughter Vivian Carroll, who were friends of Space Shuttle Columbia pilot William McCool, during NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine places a wreath at the Space Shuttle Columbia Memorial with Kristy Carroll, left, and daughter Vivian Carroll who were friends of Space Shuttle Columbia pilot William McCool, during NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

Kristy Carroll, family friend of the late space shuttle Columbia astronaut William McCool, places Hawaiian Leis at the Space Shuttle Columbia Memorial during NASA's Day of Remembrance, Thursday, Jan. 25, 2018, Arlington National Cemetery in Arlington, Virginia. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Amy Resnik, sister-in-law of the late space shuttle Challenger astronaut Judy Resnik, left, and Kristy Carroll, family friend of the late space shuttle Columbia astronaut William McCool embrace by the Space Shuttle Columbia and Challenger Memorials during NASA's Day of Remembrance, Thursday, Jan. 25, 2018, at Arlington National Cemetery in Arlington, Virginia. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Kristy Carroll, family friend of the late space shuttle Columbia astronaut William McCool, and acting NASA Administrator Robert Lightfoot lay a wreath at the Space Shuttle Columbia Memorial as part of NASA's Day of Remembrance, Thursday, Jan. 25, 2018, at Arlington National Cemetery in Arlington, Virginia. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Kristy Carroll, Family friend of the Columbia Mission, places flowers over the Space Shuttle Columbia Memorial during a ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 23, 2025, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

From left to right, Chuck Resnik, brother of Challenger Mission Specialist Judith Resnik; June Scobee-Rodgers, widow of Challenger Commander Dick Scobee; Kristy Carroll, friend of Space Shuttle Columbia pilot William McCool, daughter Vivian Carroll; Vice President Mike Pence, and NASA Administrator Jim Bridenstine visit the Space Shuttle Columbia Memorial after a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, NASA Deputy Administrator Pam Melroy, and Columbia astronaut William McCool’s family friend Kristy Carroll help place a lei at the Space Shuttle Columbia Memorial during a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 25, 2024, at Arlington National Cemetery in Arlington, Va. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Keegan Barber)

NASA Administrator Bill Nelson, NASA Deputy Administrator Pam Melroy, and Columbia astronaut William McCool’s family friend Kristy Carroll help place a lei at the Space Shuttle Columbia Memorial during a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 25, 2024, at Arlington National Cemetery in Arlington, Va. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Keegan Barber)

Acting NASA Administrator Steve Jurczyk, left, watches as McCool Family Representative Kristy Carroll places a lei on the Space Shuttle Columbia Memorial during a ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 28, 2021, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Bill Nelson, right, along with family and friends of Challenger and Columbia astronauts, from left to right, Dan Tani, Jane Tani, Amy Resnik, Chuck Resnik, and Kristy Carroll, stop at the gravesite of former astronaut and U.S. Senator John Glenn to pay their respects, Thursday, Jan. 26, 2023, at Arlington National Cemetery in Arlington, Va. Nelson, along with family and friends of Challenger and Columbia astronauts, had earlier laid wreaths in memory of those men and women who lost their lives in the quest for space exploration as part of NASA's Day of Remembrance. Photo Credit: (NASA/Aubrey Gemignani)

Vice President Mike Pence observes the grave marker of Virgil "Gus" Grissom from Apollo 1, after a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

Vice President Mike Pence hugs June Scobee-Rodgers, widow of Challenger Commander Dick Scobee at the Space Shuttle Columbia Memorial after a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

Vice President Mike Pence and NASA Administrator Jim Bridenstine lay a wreath at the grave markers of Virgil "Gus" Grissom and Roger Chaffee, from Apollo 1, as part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)

Acting NASA Administrator Steve Jurczyk, NASA personnel and others are seen in this black and white infrared photograph as they observe a moment of silence during a wreath laying ceremony as part of NASA's Day of Remembrance, Thursday, Jan. 28, 2021, at Arlington National Cemetery in Arlington, Va. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

NASA personnel watch as a wreath is laid at the Tomb of the Unknowns by acting NASA Administrator Steve Jurczyk as part of NASA's Day of Remembrance, Thursday, Jan. 28, 2021, at Arlington National Cemetery in Arlington, Va. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

NASA personnel watch the guard-change ceremony at the Tomb of the Unknowns by as part of NASA's Day of Remembrance, Thursday, Jan. 28, 2021, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Acting NASA Administrator Steve Jurczyk speaks to NASA personnel and others during a wreath laying ceremony as part of NASA's Day of Remembrance, Thursday, Jan. 28, 2021, at Arlington National Cemetery in Arlington, Va. The wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Bill Ingalls)

Vice President Mike Pence observes the grave marker of Virgil "Gus" Grissom, from Apollo 1, after family and friends of astronauts lost in the Challenger and Columbia missions, former NASA Administrators, and other NASA staff participated in a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Feb. 7, 2019, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)