The Mercury-Atlas rocket, Friendship 7, would be the first American manned orbital space flight. The rocket is launched from Pad 14 in this photo from Feb. 20, 1962.
Launched on July 26, 2005 from the Kennedy Space Center in Florida, STS-114 was classified as Logistics Flight 1. The mission's third and final extravehicular activity included taking a close-up look and the repair of the damaged heat shield. Gap fillers were removed from between the orbiter's heat-shielding tiles located on the craft's underbelly. Never before had any repairs been done to an orbiter while still in space.
Earth Day is celebrated on April 22 each year to raise awareness of ways to live green, in hopes of saving the planet. What will you do for Earth Day?
Astronaut Rick Linnehan works on the International Space Station during a spacewalk.
As April is the cruelest month, it seems like a fine time to check in with some of the mystery genre's most reliable wordsmiths. From forgotten historical figures to lost children, there are enough puzzles and double-crosses here to carry fans through to summer – but not a butler in sight.
Yuri Gagarin became the first human to enter space on April 12, 1961. Fifty years later, isn't it about time you get a chance to be an astronaut?
Spectators watch fireworks organized to celebrate the 50th anniversary of Yuri Gagarin's historic space flight, in Moscow's Victory Park.
Yuri Gagarin, fifty years ago, Russian air force pilot Yuri Gagarin blasted off on the first manned space flight in history. His interactive, Soviet-inspired Google Doodle delights all who dream of worlds beyond our own.
The urgency and importance of NASA's Marshall Space Flight Center's mission in the 1960s was apparent from the beginning. It became even more apparent on April 12, 1962, when the Soviet cosmonaut, Yuri Gagarin, became the first man in space.
Yuri Gagarin was launched into space fifty years ago today. It was man's first time in space, and the entire trip around Earth is celebrated in a new film and mobile app that take viewers on the journey with Gagarin.