Astronaut Kathy Thornton remembers her spacewalk during one of the Hubble Servicing Missions, STS-61.
NASA’s Hubble Space Telescope has been in operation for 30 years. In honor of its 30th birthday, here are 30 fast facts about this Great Observatory.
Earth is celebrating the 50th anniversary of Earth Day in 2020. Test your knowledge about our home planet!
Apollo 13 astronaut Jim Lovell remembers the crew’s chance of survival was less than 10%. Hear this story on the 50th anniversary of their safe return home.
Hear a first-hand account of the explosion that threatened the crewmembers of Apollo 13. Fifty years ago on April 13, 1970, the course of the hopeful 3rd Moon-landing mission drastically changed.