Crews was in line to fly on two military spacecraft that never made it to orbit.
The history of space exploration is rich with photos from NASA that detail the history of space travel, breakthrough propulsion systems, groundbreaking astronauts and missions, and robotic exploration. Each weekday, SPACE.com looks back at the history of spaceflight, from the early days of the space race through the space shuttle era, from the years of the first rockets and satellites to the test-flight era that preceded human spaceflight, and of course beyond.
On Feb. 14, 1990, NASA's Voyager 1 spacecraft captured one of the most iconic photographs of the space age; to commemorate the moment's 30th anniversary, NASA has digitally dusted off the image.
A new memorial for Félicette, the first and only cat to go to space, has arrived at its permanent home at the International Space University in Strasbourg, France.
Today spacewalks are an almost routine part of space exploration but the very first spacewalk by Alexei Leonov, who died last week at 85, was anything but straightforward.
Spoiler alert: The man who cracks into the package of space-ready, bite-size cheese sandwiches does not taste one of the sickly, orange-and-white delicacies. Nor does he brave a "strawberry cube."
Today, Wernher von Braun is remembered as a rocket engineer who spent his career singlemindedly focused on enabling human spaceflight, first for Nazi Germany and then for the U.S.
Fifty-six years after a cat named Félicette became the first feline to launch into space, plans to build the cosmic cat's first proper memorial are beginning to take shape.
As Corvette and astronaut Scott Kelly unveil the new C8 Corvette for 2019, here's a at the Apollo-era "AstroVette" of 1969.
The Soviet Union launched the Cosmos 482 Venus probe on March 31, 1972. But the failed Venus craft is crashing back to Earth soon.
NASA's Apollo 12 mission sent three astronauts to the moon in November 1969 to make the second crewed lunar landing in history. See how that mission went in photos in our photo gallery here!
The first all-female crew of scientific experimenters prepare experiments that were used during the Space Shuttle/Spacelab missions.