NASA marks 20 years since space shuttle Columbia disaster


              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              Space Shuttle Columbia team members remember the loss of the STS-107 crew during NASA's Day of Remembrance ceremony, presented by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex in Florida, on Thursday, Jan. 26, 2023, for the 20th anniversary of the mission disaster that killed seven astronauts on Feb. 1, 2003. (Joe Burbank/Orlando Sentinel via AP)
            
              FILE - A U.S. flag, along the base of the Washington Monument, flies at half-staff in memorial of those who died aboard space shuttle Columbia, Saturday, Feb. 1, 2003, in Washington. Space shuttle Columbia broke apart in flames 200,000 feet over Texas on Saturday, killing all seven astronauts just minutes before they were to glide to a landing in Florida. NASA marked the 20th anniversary of the tragedy with somber ceremonies and remembrances during its annual tribute to fallen astronauts on Thursday, Jan. 26, 2023. (AP Photo/Pablo Martinez Monsivais, File)
            
              FILE - This undated photo released in June 2003 provided by NASA shows STS-107 crew members aboard the Space Shuttle Columbia. On Feb. 1, 2003, the seven crew members were lost as the Columbia fell apart over East Texas. This picture was on a roll of unprocessed film later recovered by searchers from the debris. From the left (bottom row), wearing red shirts to signify their shift's color, are mission specialist Kalpana Chawla, commander, Rick D. Husband, mission commander Laurel B. Clark and Ilan Ramon, payload specialist. From the left (top row), wearing blue shirts, are mission specialist David M. Brown, pilot William C. McCool, pilot; and payload commander Michael P. Anderson. (NASA via AP, File)
            
              FILE - Debris from the space shuttle Columbia streaks across the Texas sky as seen from Dallas on Saturday, Feb. 1, 2003. NASA marked the 20th anniversary of the tragedy with somber ceremonies and remembrances during its annual tribute to fallen astronauts on Thursday, Jan. 26, 2023. (AP Photo/Jason Hutchinson/file)
            
              From left, Bob Cabana, Associate Administrator of NASA; Sheryl Chaffee, daughter of Apollo 1 astronaut Roger Chaffee, and Janet Petro, NASA KSC director, bow their heads in prayer during NASA's Day of Remembrance ceremony, hosted by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex, Thursday, Jan. 26, 2023. NASA is marking the 20th anniversary of the space shuttle Columbia tragedy with somber ceremonies during its annual tribute to fallen astronauts. (Joe Burbank/Orlando Sentinel via AP)
            
              A wreath is presented by, from left, Bob Cabana, Associate Administrator of NASA; Janet Petro, NASA KSC director, and Sheryl Chaffee, daughter of Apollo 1 astronaut Roger Chaffee, during NASA's Day of Remembrance ceremony, hosted by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex,Thursday, Jan. 26, 2023. NASA is marking the 20th anniversary of the space shuttle Columbia tragedy with somber ceremonies during its annual tribute to fallen astronauts. (Joe Burbank/Orlando Sentinel via AP)
            
              A wreath is presented by, from left, Bob Cabana, Associate Administrator of NASA; Janet Petro, NASA KSC director, and Sheryl Chaffee, daughter of Apollo 1 astronaut Roger Chaffee, during NASA's Day of Remembrance ceremony, hosted by the Astronauts Memorial Foundation at Kennedy Space Center Visitor Complex, Thursday, Jan. 26, 2023. NASA is marking the 20th anniversary of the space shuttle Columbia tragedy with somber ceremonies during its annual tribute to fallen astronauts. (Joe Burbank/Orlando Sentinel via AP)
NASA marks 20 years since space shuttle Columbia disaster