"Thanks for all your effort," wrote the first moonwalker. Neil Armstrong was appreciative, but as explained in his ...

Take a guided trip through the model and then head over to Smithsonian ... Is Jeff Bezos' Blue Origin the Future of Space Exploration? (01:11) 10 Fun Facts About Bioluminescence (02:38) A Map ...

For millions of Americans, it was an event that would be seared into their memories for the rest of their lives – on par with the Kennedy assassination and 9/11. On that chilly January day in ...

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle Columbia disaster ... the Kennedy assassination and 9/11. On that chilly January day in ...

For millions, it was an event that would be seared into their memories for the rest of their lives – on par with the Kennedy assassination and 9/11.

Video Back Videos home Signature collection Essentials collection Artificial Intelligence ...