19 March 2015, 02:01 PM ET
Giant dust clouds seen in the early universe may have been created by exploding stars, a discovery that suggests supernovas were prolific space dust factories for ancient galaxies, scientists say.
19 March 2015, 01:00 PM ET
For years, many astronomers thought planets around red dwarfs were probably uninhabitable. But recently, the thinking has begun to change.
19 March 2015, 12:00 PM ET
An unexpected leak of a chemical designed to tag complex organic molecules in samples collected by NASA’s Mars rover Curiosity appears to have serendipitously done its job.
19 March 2015, 07:00 AM ET
NASA's MAVEN spacecraft spotted ultraviolet "Christmas light" auroras dancing in the Red Planet's atmosphere for five days leading up to Dec. 25, 2014.
18 March 2015, 05:08 PM ET
A total solar eclipse will be visible in parts of Europe, Asia and Africa on Friday (March 20), but eclipses can be dangerous, too, and no one should ever look directly at the sun — even during an eclipse.
18 March 2015, 04:08 PM ET
NASA's Lunar Reconnaissance Orbiter has spotted the crater left by the powerful moon impact of March 17, 2013.
18 March 2015, 02:47 PM ET
After astronomers recorded a bright flash on the Moon in March 2013 NASA tasked it Lunar Reconnaissance Orbiter to compare old and new images. Clues led the LRO team to find an 18-meter-wide crater, one of over 25 fresh impacts.
18 March 2015, 12:31 PM ET
Particles within a comet's tail can quickly whip up to the speed of the solar wind, according to observations of a comet in 2013.
18 March 2015, 11:00 AM ET
Space.com readers sent in their photos of the amazing auroras in 2015, including views captured during an intense geomagnetic storm on March 17-18, 2015.
18 March 2015, 07:00 AM ET
A new asteroid-hunting computer program will help amateur astronomers and citizen scientists identify potentially hazardous space rocks faster and more accurately, NASA officials say.
17 March 2015, 10:00 PM ET
For about 50 years, humanity has sent orbiters, probes and landers to the Red Planet. Here's a look at all of the missions to Mars to date, both the successes and the failures.
17 March 2015, 12:45 PM ET
A massive solar storm is bombarding Earth today (March 17), sparking stronger than normal auroras for St. Patrick's Day. The solar storm poses no threat to satellites, but may affect GPS and radio signals.
17 March 2015, 12:40 PM ET
See images of the sun's activity during 2015 in our Space.com gallery.
17 March 2015, 12:31 PM ET
Fans of the science fiction epic "Interstellar" don’t have to wait until March 31st to watch the movie at home: a digital HD version is available starting today (March 17).
17 March 2015, 11:29 AM ET
The year 2015 is packed full of amazing astronomical sights in the daytime and nighttime sky, from solar and lunar eclipses to dazzlingly bright planets. See our list of the 9 best stargazing events of the year.
17 March 2015, 08:12 AM ET
On Thursday night, for the first time in my life, I got to watch a multi-ton rocket claw its way through the atmosphere with such force that it countered the pull of Earth's gravity and reached the region called outer space. It was amazing.
17 March 2015, 07:01 AM ET
Titania and Miranda offer up great views and places to explore, but both of the moons suffer from extreme cold and very low gravity.
16 March 2015, 04:52 PM ET
Titania, an airless moon of Uranus, is cold and its day is 84 years long. See what it would be like for astronauts on Titania in this Space.com infographic.
16 March 2015, 04:29 PM ET
The strange mystery of the giant "Y" seen in the skies of Venus for more than 50 years may be solved at last: This colossal oddity may be caused by a new kind of wave in the solar system, scientists have found.
16 March 2015, 04:18 PM ET
The composition of newfound features on the surface of Mercury, identified by new maps of the planet, suggest that the exposed mantle created the features.
15 March 2015, 11:29 AM ET
NASA launched a new space-weather mission and scientists found evidence of a hydrothermal system on Saturn's ocean-bearing moon Enceladus. Here's a look at Space.com's top stories of the week.
14 March 2015, 12:32 PM ET
From a monster solar flare to a spectacular night launch, don't miss these amazing space images of the week for March 15, 2015.
13 March 2015, 12:52 PM ET
In honor of the Pi Day of the century, 3.1415 (March 4, 2015), NASA’s Jet Propulsion Laboratory has created a dizzying math challenge. Hint: every solution will use the mathematical constant pi
13 March 2015, 12:30 PM ET
An Earth-size alien waterworld tilted on its side may still be able to support life, if the oceans aren't too shallow, a new study suggests. Oceans are the key to keeping the climate stable enough on highly oblique worlds.
13 March 2015, 07:00 AM ET
In an unlikely scenario, the impacts that created the craters that became Canada's two Clearwater Lakes apparently occurred almost 200 million years apart.
13 March 2015, 07:00 AM ET
Curiosity transferred powdered rock sample from its robotic arm to an analytical instrument on its body on Wednesday (March 11), and then drove about 33 feet (10 meters) toward the southwest on Thursday (March 12), NASA officials said.
13 March 2015, 12:30 AM ET
An Atlas V rocket lit up the night sky over Florida, like a larger-than-life roman candle, at 10:44 p.m. EDT on March 12 (0244 GMT March 13). The rocket carried a scientific experiment that will study an explosive phenomenon taking place in Earth's magnet
12 March 2015, 11:00 PM ET
NASA will launch a new group of satellites to study the phenomenon of magnetic reconnection.
12 March 2015, 05:36 PM ET
Titan is probably the least inhospitable place in the outer solar system, but remember to bring oxygen and warm clothing.
12 March 2015, 04:47 PM ET
The first human-made spacecraft to soft-land on the surface of a comet might be waking up soon.
12 March 2015, 02:27 PM ET
oday (March 12) at 10:44 p.m. EDT (0244 GMT March 13), an Atlas V rocket will take off from Cape Canaveral. Photographers looking to get the perfect shot of the rocket taking off have built MacGyver-style devices to protect their cameras.
12 March 2015, 01:50 PM ET
Ganymede, Jupiter's largest moon, has a vast underground ocean of salty water, NASA scientists announced Thursday (March 12). The ocean on Ganymede was discovered with the Hubble Space Telescope.