On Jan. 24, 1985, space shuttle Discovery took off from NASA’s Kennedy Space Center (KSC) in Florida on STS-51C, the first space shuttle mission entirely dedicated to the Department of Defense (DOD).

On Jan. 24, 1985, space shuttle Discovery took off from NASA's Kennedy Space Center (KSC) in Florida on STS-51C, the first ...

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.

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

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

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.

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

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

On Jan. 28, 1986, the space shuttle Challenger broke apart shortly after it lifted off from the Kennedy Space Center in Florida, killing all aboard.

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NASA's Day of Remembrance honours astronauts who died during Apollo 1, Space Shuttle Challenger, and Space Shuttle Columbia ...

NASA sets aside a poignant moment to reflect on those who made the ultimate sacrifice in the name of exploration. This year’s ...