The Space Mirror Memorial is in view before the start of the Day of Remembrance ceremony at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Members of the Viera High School JROTC Honor Guard present colors during the Day of Remembrance ceremony at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Members of the Viera High School JROTC Honor Guard observe a minute of silence during the Day of Remembrance ceremony at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Kennedy Space Center workers and guests place flowers at the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Florida during the Day of Remembrance on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Kennedy Space Center Director Janet Petro makes remarks during the Day of Remembrance on Jan. 26, 2023, at nearby Kennedy Space Center Visitor Complex in Florida. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Sheryl Chafee, Astronauts Memorial Foundation (AMF) Board of Directors chairperson, center, accompanied by NASA Associate Administrator Bob Cabana, and Kennedy Space Director Janet Petro, lay a wreath in front of the Space Mirror Memorial during the Day of Remembrance on Jan. 26, 2023, at the Kennedy Space Center Visitor Complex in Florida. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the AMF, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

A wreath has been placed in front of the Space Mirror Memorial during the Day of Remembrance ceremony at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Sheryl Chafee, second from right, Astronauts Memorial Foundation (AMF) Board of Directors chairperson, accompanied by NASA Associate Administrator Bob Cabana, and Kennedy Space Director Janet Petro, lay a wreath in front of the Space Mirror Memorial during the Day of Remembrance on Jan. 26, 2023, at the Kennedy Space Center Visitor Complex in Florida. At far right is Thad Altman, AMF president and CEO. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the AMF, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Kennedy Space Center workers and guests placed flowers at the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Florida during the Day of Remembrance on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Kennedy Space Center workers and guests observe a minute of silence during the Day of Remembrance at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Kennedy Space Center workers and guests attend the Day of Remembrance at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

Sheryl Chafee, Astronauts Memorial Foundation (AMF) Board of Directors chairperson, at right, accompanied by NASA Associate Administrator Bob Cabana, and Kennedy Space Director Janet Petro, lay a wreath in front of the Space Mirror Memorial during the Day of Remembrance on Jan. 26, 2023, at the Kennedy Space Center Visitor Complex in Florida. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the AMF, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

NASA Associate Administrator Bob Cabana, makes remarks during the Day of Remembrance on Jan. 26, 2023, at nearby Kennedy Space Center Visitor Complex in Florida. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.

From left, Kennedy Space Center Deputy Director Kelvin Manning; Sheryl Chaffee, Astronauts Memorial Foundation (AMF) Board of Directors chairperson; and NASA Associate Administrator Bob Cabana, attend the Day of Remembrance ceremony at the Kennedy Space Center Visitor Complex in Florida on Jan. 26, 2023. The event honored the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. This year marks the 20th anniversary of the Columbia tragedy. This year’s ceremony was hosted by the AMF, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts each year.