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Mars lost ocean of water to space
About 4 billion years ago, a primitive ocean on Mars held more water than Earth's Arctic Ocean, say researchers, but Mars has lost 87 percent of it to space.
March 7, 2015
Dawn spacecraft arrives at Ceres!
The Dawn spacecraft has made history. It has become the first mission to visit a dwarf planet when it successfully slipped into Ceres' orbit on March 6.
March 6, 2015
We’re genetically more like our fathers
Look like your mother? Act like your mother? Maybe so, but a new study says we mammals are more genetically similar to our fathers.
March 4, 2015
Methane-based lifeforms on Saturn’s moon?
Scientists offer a template for life that could thrive in the harsh, cold world of Titan, the giant moon of Saturn. It’s not life as we know it.
March 3, 2015
Rosetta spacecraft glimpses its own shadow
It's a spacecraft shadow on a comet! Rosetta caught its own shadow encircled in a wreath of light, on the icy surface of Comet 67P/Churyumov-Gerasimenko.
March 3, 2015
First photo of light as particle and wave
At last ... a wavicle! Who thought we'd ever see a single photo of light's dual nature as both a particle and a wave?
March 3, 2015
Clearest pictures ever of free-falling snowflakes
Research suggests that our iconic view of snowflakes as "perfect" isn't true.
March 3, 2015
Missed the spacewalks? Here’s video, photos
On Sunday, NASA astronauts completed their third spacewalk in eight days. Cool video and gorgeous pics from the trio of spacewalks.
March 2, 2015
Touching NASA tributes to Leonard Nimoy’s passing
Nimoy’s character Mr. Spock on Star Trek inspired generations of astronauts, space scientists and engineers, as well as space fans around the globe.
March 2, 2015
Slushy wave off coast of Nantucket
Sure, the ocean freezes. But this photo of partly frozen waves - caught by photographer and surfer Jonathan Nimerfroh - fascinated even the experts.
February 28, 2015
