NASA astronauts Anne McClain and Nichole Ayers emerged around 9 a.m. Thursday, May 1 for the fifth-ever all-female spacewalk.

The Apollo lunar missions worked by using a spacecraft in two parts. The Command and Service Module (CSM) and the Lunar ...

On April 28, 2001, the world's first space tourist hitched a ride to the International Space Station on a Russian Soyuz ...