NASA's official insignia, nicknamed the "meatball," as worn on the moon by Apollo 11 astronaut Neil Armstrong in 1969. . ... The logo reads "NASA" in bold letters across its center.

Here's everything to know about NASA's 1970 space mission Apollo 13, including its purpose, what went wrong, if the crew survived and more.

One of the early Apollo astronauts has died. Walt Cunningham died Tuesday after complications from a fall. He was 90. Walt Cunningham flew in space just one time. His flight in 1968 was an ...