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.

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.

NASA honored its fallen space explorers during its annual "Day of Remembrance" on Thursday (Jan. 23). The agency held events ...

Today is a very special, and somber day for North Alabama. It's NASA Marshall Space Flight Center's Day of Remembrance.

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

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

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

The commemorative plaque was left on the moon back in 1971, during Apollo 15, in memory of 14 NASA astronauts and USSR ...

NASA will observe its annual Day of Remembrance on Thursday, Jan. 23, honoring the members of the NASA family who lost their lives in ...

It took a quarter of a century, but artist Mikael Genberg may finally see his dream realized: a red Swedish house, on the ...

The Astronauts Memorial Foundation, in partnership with NASA Kennedy Space Center and Kennedy Space Center Visitor Complex.