An annual memorial was held at the Kennedy Space Center Visitor Complex. Every fourth Thursday in January, NASA remembers fallen astronauts.

"We must honor their sacrifice by fortifying our commitment to safety and excellence as new generations of space explorers, follow their footsteps." ...

NASA astronaut Don Pettit has captured another remarkable shot, this one showing the Betsiboka River estuary in Madagascar.

New Hampshire teacher Christa McAuliffe and other astronauts were honored Thursday by NASA during its Day of Remembrance.

New Hampshire teacher Christa McAuliffe and other astronauts were honored Thursday by NASA during its Day of Remembrance.

We’ve come years in our journey to explore the unknown, but none of that would be possible without those who made the ultimate sacrifice towards the exploration.

The Apollo I and space shuttle Challenger and Columbia astronauts were remembered during an annual ceremony at Kennedy Space Center.

We've come years in our journey to explore the unknown, but none of that would be possible without those who made the ultimate sacrifice towards the exploration.

NASA holds a Day of Remembrance to pay respect to the lives lost while working to further the understanding of space. This includes the crews of Apollo 1, Challenger and Columbia.

Leland Melvin, an astronaut, educator, former NFL player and now author, wants his new 'Space Chasers' series to show kids they can do anything, with the right people in their orbit.

Currently, Whitson holds the record for the most cumulative spacewalking hours by a female astronaut with 10 spacewalks ...

Welcomed into the gymnasium with cheers and applause, Dr. Jeanette Epps visited the school during a trip to Nebraska for a new traveling exhibit at the Strategic Air Command and Aerospace Museum.