NASA scientists cooked up an alien atmosphere in their lab to solve the puzzle of "hot Jupiters."
Happy vernal equinox! Here's a satellite view of the sun rising over North America this morning on the first day of spring. In the Southern Hemisphere, today is the first day of autumn.
The seasons change on Earth today, and Google is getting into the equinox spirit with a pair of doodles to celebrate the yearly milestone.
If you want to use a nuclear weapon to save the world from an asteroid, don't try to do it the way Bruce Willis did, NASA's planetary defense office would like to remind you.
The near-Earth asteroid Bennu is one of just a dozen or so known 'active asteroids,' newly announced observations from NASA's OSIRIS-REx spacecraft reveal.
The near-Earth asteroid Bennu could be Exhibit A for space miners making their case to skeptical investors.
NASA will announce new science results from its first-ever asteroid sample return mission in a live teleconference today (March 19) at 1:30 p.m. EDT (1730 GMT). Listen live here!
A Japanese spacecraft studying the near-Earth asteroid Ryugu beamed home new data revealing that the space rock has less water than scientists expected.
On Dec. 18, 2018, a school bus-size meteor exploded over Earth with an impact energy of roughly 10 atomic bombs. But no one saw it.
The Science Channel series "Space's Deepest Secrets" returns tonight (March 19) at 10 p.m. EDT with a look at a mysterious interstellar visitor.
An ethereal track by Queen lead guitarist Brian May accompanies the awe-inspiring time-lapse view from NASA's New Horizons flyby of a distant solar system object.
The concept of atoms had been floating around off and on for a few millennia, but it took some clever experimentation to pinpoint their existence.