On 1970, NASA cancelled the Apollo 20 moon mission. This came just six months after Apollo 11 astronauts Buzz Aldrin and Neil Armstrong became the first people to ever set foot on the moon. Instead of launching another crew of astronauts to the moon,

HOUSTON, Texas -- NASA is celebrating its 50th anniversary of the Moon Landing this Saturday, and they're taking a look back at that historic day in 1969. NASA's history office shared some very special moments of the July 20 moon landing on Twitter.

In February 1966, a Gemini crew’s T 38 jet slammed into McDonnell’s Building 101 in a storm, killing two astronauts and narrowly missing the heart of the Gemini program. Had the impact been just moments earlier,

NASA just postponed a spacewalk because of a medical concern with an astronaut. Here's how the agency has handled such issues in the past.

Four astronauts are about to become the first humans to venture near the moon in more than half a century since NASA's iconic Apollo era ended.