Stars like our Sun can last for a very long time (in human terms, anyway!) somewhere in the neighborhood of…
Canadian astronaut and Expedition 35 commander Chris Hadfield just shared this photo on Twitter, showing a portion of one of…
It's quite a long way from Mars, but I can't help but be reminded of the Red Planet's ice-covered north…
We live on a planet dominated by weather. But not just the kind that comes in the form of wind,…
Mercury, traveling in its 88-day-long orbit around the Sun with basically zero axial tilt, has many craters at its poles…
Captured on January 15, this narrow-angle Cassini image shows an outer portion of Saturn's A ring on the left and…
"The total number of stars in the Universe is larger than all the grains of sand on all the beaches…
Do you know how much material falls onto Earth from space every day? How many different species there are in…
Dr. Sally K. Ride, physicist, NASA astronaut, and first American woman to fly in space, will be honored with a…
Dark matter: it's invisible, it's elusive, it's controversial... and it's everywhere -- in the Universe, yes, but especially in the…