03:00 PM EDT 01/29/2016
Son of Teacher In Space Christa McAuliffe Leads Tributes to Lives Lost on 30th Anniversary of Challenger Explosion That Left Seven Killed
Originally posted 01/28/2016 07:00PM
Thirty years ago Christa McAuliffe boarded the Challenger spacecraft to become the first teacher in space, but seconds after liftoff, disaster struck, killing her and the six astronauts on board.
30 Years Later, Daughter of Challenger Commander Remembers His Legacy: 'They Were United Together to Do Something Great'
Originally posted 01/28/2016 02:45PM
The images are indelible – on the clear, cold morning of January 28, 1986, the space shuttle Challenger embarked on its tenth milestone mission. But disaster struck 73 seconds later when the shuttle exploded, killing the seven astronauts on board.
Originally posted 01/20/2016 02:25PM
There is new evidence suggesting that our solar system contains a massive ninth planet.
Originally posted 01/13/2016 01:45PM
Too late for Michael Bay to pivot into government?
Meet the Inspiring 17-Year-Old Who Holds 2 College Degrees, Has Written 2 Books, Flies Planes and Works for NASA
Originally posted 11/29/2015 02:50PM
At 17 years old, Moshe Cavalin has accomplished more than many people do in a lifetime.
Originally posted 09/28/2015 09:35AM
Stargazers around the world turned out Sunday night and early Monday to see the rare astronomical phenomenon known as the "super blood moon." And it was absolutely beautiful.
Originally posted 09/27/2015 10:30PM
On Sunday night, a rare astronomical phenomenon took place, resulting in a "super blood moon."
Originally posted 08/03/2015 11:50PM
It's been 49 years since Nichelle Nichols took on the role of Lt. Uhura on the original Star Trek series, but her relationship with space exploration is continuing.
Originally posted 07/21/2015 02:00PM
There's actually a very important part of the PEOPLE editorial team dedicated to making sure everyone knows how amazing Queen guitarist Brian May is. Not only does the guy go out of his way to save badgers in the U.K., but he also's also a Ph.D.-wielding astrophysicist, and he recently visited the NASA team who helped to take those groundbreaking pictures of Pluto that surfaced last week.
Originally posted 06/17/2015 11:00AM
Time to start rehearsing your "we will not go quietly into the night" speech from Independence Day.
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