05 March 2015, 07:00 AM ET
The European Space Agency's Rosetta spacecraft took the picture during a close flyby of Comet 67P/Churyumov-Gerasimenko on Feb. 14, when the sun, spacecraft and comet were all neatly aligned.
04 March 2015, 05:50 PM ET
Europe's Rosetta spacecraft recently beamed back an amazing photo of its comet taken during a risky, close flyby of the dusty cosmic body.
04 March 2015, 12:30 PM ET
Dark matter may be one of the greatest mysteries of the universe, but it could help solve a puzzle about the sun that has been baffling scientists for years, researchers say.
04 March 2015, 12:30 PM ET
Astronomers have watched a pulsar some 25,000 light-years from Earth slip from view, swallowed by a companion star's warp in the fabric of space-time. This wacky effect is one more example that proves Einstein's general theory of relativity.
04 March 2015, 07:22 AM ET
The car-size Curiosity rover suffered a "transient short circuit" on Feb. 27 while it was transferring sample powder from its robotic arm to instruments on the robot's body, NASA officials said.
04 March 2015, 07:00 AM ET
The Dawn mission's unprecedented deep-space feats are enabled by the probe's innovative propulsion system, which is about 10 times more efficient than traditional chemical thrusters, NASA officials say.
03 March 2015, 04:24 PM ET
Tech giant Google will give $1 million to Lick Observatory, a University of California, Berkeley facility that has been battling for funds since 2013, the observatory announced today (Feb. 10).
03 March 2015, 03:00 PM ET
Two stars, each more massive than our Sun but orbiting 100 times closer, affect each others gravity wells allowing astronomers to gauge space-time itself.
03 March 2015, 01:10 PM ET
A network of amateur astronomers is responsible for identifying a truly mysterious phenomenon on the surface of Mars: a plume reaching so high above the surface of the Red Planet that it was visible from Earth.
03 March 2015, 12:45 PM ET
Jupiter's moon Europa suffers from extreme cold and deadly radiation, but its astronomical and geological sights are unique in the solar system.
03 March 2015, 12:00 PM ET
Scientists believe conditions may be right for life, under Europa's icy crust.
03 March 2015, 11:24 AM ET
Our civilization—and presumably any civilization with a technological capacity at least as advanced as ours—runs on energy and raw materials.
03 March 2015, 10:39 AM ET
Galaxy cluster Abel 1689 is so massive, light bends around it in an effect predicted by Einstein called a gravitational lens, revealing Galaxy A1689-zD1 to be surprisingly mature despite the young age of the universe seen.
03 March 2015, 08:47 AM ET
Scientists have found an early galaxy that produces more stars in a single day than the Milky Way creates in a year.
03 March 2015, 07:45 AM ET
NASA's Dawn will investigate Ceres' bright spots and other mysteries after it enters orbit around the dwarf planet at about 7:20 a.m. EST (1220 GMT) on Friday (March 6).
02 March 2015, 04:00 PM ET
NASA's Dawn probe is scheduled to slip into orbit around Ceres — the largest object in the main asteroid belt between Mars and Jupiter — at 7:20 a.m. EST (1220 GMT) Friday, wrapping up a deep-space chase that lasted two-and-a-half years.
02 March 2015, 02:50 PM ET
In less than two weeks, NASA will launch a new group of satellites to study the sometimes beautiful, sometimes dangerous phenomenon of magnetic reconnection. This energetic event can wreak havoc on satellites and power grids, or create amazing auroras.
02 March 2015, 02:36 PM ET
NASA's Dawn Mission sent back the best imagery yet showing many craters and unusual bright spots. NASA's Jet Propulsion Laboratory scientists believe they reveal how the planet "formed and whether its surface is changing."
02 March 2015, 12:58 PM ET
In NASA's Magnetospheric Multiscale (MMS) mission, 4 identical space craft will study 'magnetic reconnection' when magnetic fields lines from the Sun cross paths with Earth releasing bursts of energy toward the ground.
02 March 2015, 07:00 AM ET
The 570-megapixel Dark Energy Camera in Chile snapped a spectacular photo of Comet Lovejoy, formally known as C/2014 Q2 (Lovejoy), on Dec. 27, 2014, while scanning the southern sky as part of the Dark Energy Survey.
02 March 2015, 03:00 AM ET
Space.com attended this year's Toy Fair to find the best space-based toys on the market. Here are some of the most awesome things we saw there.
01 March 2015, 12:41 PM ET
Astronomers discovered the most gigantic black hole yet known and Leonard Nimoy — Mr. Spock from the beloved "Star Trek" series — passed away at the age of 83. Here are Space.com's pics for the top space stories of the week.
01 March 2015, 07:00 AM ET
Dawn is scheduled to reach Ceres — the largest body in the main asteroid belt between Mars and Jupiter — Thursday night. The probe has been headed for Ceres since September 2012, when it departed Vesta, the asteroid belt's second-biggest denizen.
28 February 2015, 09:14 PM ET
We all know and love the moon. We’re so assured that we only have one that we don’t even give it a specific name.
28 February 2015, 08:37 PM ET
Indigenous Australians have been developing complex knowledge systems for tens of thousands of years. These knowledge systems - which seek to understand, explain, and predict nature - are passed to successive generations through oral tradition.
28 February 2015, 03:32 PM ET
From a record-setting parafoil flight to a newly-tested space plane, don't miss these amazing space images of the week for March 1, 2015.
27 February 2015, 04:30 PM ET
Why is Taurus the Bull so mad? He's being chased by bees! The Pleiades, that is. Look for Taurus, the Pleiades and many other celestial sights in the Northern Hemisphere during the winter months.
27 February 2015, 04:00 PM ET
A recently launched NASA satellite has just deployed its giant antenna in preparation to collect unprecedented data about soil moisture around the world.
27 February 2015, 02:21 PM ET
It has long been assumed that the size of a supermassive black hole in a galaxy's core is intimately related to the number of stars that galaxy contains -- but it might not be that simple.
27 February 2015, 10:52 AM ET
A new way to reconcile quantum mechanics and general relativity could imply that the age of the universe is infinite, and that there was no true Big Bang that started it all.
27 February 2015, 09:39 AM ET
Data from the Global Precipitation Measurement (GPM) Core Observatory was converted into 3D imagery of 2 storms over the United States on Feb. 17th and 21st, 2015.
27 February 2015, 07:45 AM ET
Curiosity drilled into a rock called Telegraph Peak on Tuesday (Feb. 24), collecting sample powder for analysis by its onboard instruments. The rover has now drilled into three different rocks at the base of the towering Mount Sharp.