Find out about the main events that have taken place on this day over the years.

On July 21, 2011, NASA marked the end of one of the most iconic chapters in space exploration as Space Shuttle Atlantis touched down at Kennedy Space Center, concluding the final mission of the Space ...

Stream now with KPBS Passport on KPBS+ / Watch Tuesday, July 21, 2026 at 10 p.m. on KPBS TV. When the Soviet Union falls, ...

NASA's Viking 1 mission blazed a crucial trail with its Mars landing on July 20, 1976. Now, half a century later, that trail ...

NASA's Artemis III mission is shaping up to be NASA's most complex mission in history, coordinating the launch and rendezvous ...

St. Mary’s College hosts first Space STEM Camp for 28 Southern Maryland high school students. Hands-on rocketry, astronomy ...

NASA confirms that the Artemis III mission, aimed at advancing lunar exploration, will proceed as scheduled next year. This assurance comes despite a recent setback involving an unmanned Blue Origin ...

(CNN)- On July 5, 1994, Jeff Bezos and his then-wife, MacKenzie Scott, founded a company called Cadabra. The business was briefly renamed Relentless before becoming Amazon, which launched as an online ...

The California Science Center has announced that Endeavour, NASA's final space shuttle, will go on permanent display at the Samuel Oschin Air and Space Center on November 13, 2026. The new 200,000 ...

This is the final flight of the historic Pegasus rocket. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Copyright 2026 The Associated Press. All Rights Reserved. Copyright 2026 The Associated Press. All Rights Reserved. This photo provided by NASA shows Kieran Wilson ...

NASA’s moon base plans, conceptualized just a few months ago, are rolling out in earnest as the space agency maps out a strategy to deliver landers, rovers, buggies and other assets to the lunar ...