Science & Astronomy Archive
25 February 2015, 03:40 PM ET
An American astronaut found water inside his spacesuit helmet at the end of an otherwise flawless spacewalk outside the International Space Station today (Feb. 25), but he was never in any danger, NASA officials say.
25 February 2015, 02:52 PM ET
What does it take to craft an invisibility cloak?
25 February 2015, 12:16 PM ET
A new alien planet-hunting tool found no trace of a failed star more than 100 light-years from Earth, puzzling astronomers.
25 February 2015, 11:38 AM ET
2015 an exciting year for solar system exploration and discovery.
25 February 2015, 07:00 AM ET
The far side of the moon undergoes phases of light and dark, just like the side facing Earth. A new video featuring images from NASA's Lunar Reconnaissance Orbiter brings those phases to light.
25 February 2015, 07:00 AM ET
Planets spinning on their sides were long thought to have climates too extreme for life as it is known on Earth, but now scientists find that these "rotisserie" worlds might be more hospitable.
25 February 2015, 07:00 AM ET
Although these "golden stars" were spotted during a search for an extraterrestrial galactic Internet, the researchers say intelligent aliens have nothing to do with their flickering patterns, as far as they can tell.
25 February 2015, 12:00 AM ET
NASA's Mars rover Curiosity is beaming home amazing photos of the Red Planet.
24 February 2015, 10:16 PM ET
One day I imagine that humanity will be able to visit other planets in the Solar System, and venture even further to other stars, but this has always seemed very far away. That’s the reason why I applied for the Mars One mission.
24 February 2015, 06:14 PM ET
The photo, which was released today (Feb. 24), is a composite of dozens of images taken in late January by Curiosity's Mars Hand Lens Imager. The mosaic provides a great view of the "Pahrump Hills" outcrop at the base of the huge Mount Sharp.
24 February 2015, 05:00 PM ET
Low temperatures, gravity and sunlight would define the experience of living on Ceres, the largest asteroid belt object.
24 February 2015, 01:30 PM ET
Most astronomers rely on flat images to study cosmic objects, but a group of researchers is taking an alternate approach: They're creating 3D-printed models of a star system in order to study its physical characteristics and investigate its mysterious pas
24 February 2015, 12:47 PM ET
NASA's Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite shows wind blown Saharan dust nourishes plants with phosphorus, which is in limited supply in the Amazon.
24 February 2015, 09:58 AM ET
"Unofficial orbit solution puts this comet at ~4 solar radii on Feb. 19th (2015). That's insanely close," according to the Naval Research Lab's Karl Battam.
24 February 2015, 07:00 AM ET
For more than 50 years, scientists have been scanning the heavens for signals that may have been generated by intelligent alien life. Some researchers are advocating that we beam out signals of our own designed to catch aliens' eyes as well.
24 February 2015, 07:00 AM ET
"Vulcan planets" probably originated from a stream of pebbles and small rocks that spiraled inward from more distant parts of their solar systems, a new study suggests.
23 February 2015, 05:00 PM ET
Researchers used the ALMA telescope array in Chile to pull apart the layers of star-forming regions in a nearby galaxy, revealing the differences that can cause starburst galaxies to create stars up to 1,000 times more rapidly than the Milky Way.
23 February 2015, 01:26 PM ET
Ceres, orbiting between Mars and Jupiter, has almost no gravity, warmth or atmosphere.
23 February 2015, 10:55 AM ET
An art exhibit at the Cooper Hewitt Smithsonian Design Museum in New York City bring together tools from throughout human history: from ancient artifacts to cutting edge instruments for space exploration.
23 February 2015, 10:48 AM ET
NASA researchers think they understand why comets have a hard, crispy outside and a cold but soft inside — just like fried ice cream.
21 February 2015, 07:16 PM ET
Using the new SPHERE instrument on the European Very Large Telescope, astronomers have revealed the unusual double star does not have a brown dwarf star orbiting it as previously thought.
21 February 2015, 04:46 PM ET
Europe's last cargo spacecraft came down to Earth in a fiery blaze and scientists reported seeing mysterious plumes emanating from Mars. Here are Space.com's picks for the best space stories of the week.
21 February 2015, 12:42 PM ET
From mysterious plumes on Mars to a space station made of matchsticks, don't miss these amazing space images of the week for Feb. 22, 2015.
20 February 2015, 05:35 PM ET
A strange set of 48 galaxies in the Coma Cluster has very few stars, revealing that these galaxies are especially rich in dark matter. The galaxies may have been robbed of much of their star-forming gas early in their formation, researchers say.
20 February 2015, 09:43 AM ET
Earth's water has a mysterious past stretching back to the primordial clouds of gas that birthed the Sun and other stars.
20 February 2015, 07:00 AM ET
NASA officials have asked scientists to consider ways that a Europa mission could search for evidence of alien life in the plumes of water vapor that apparently blast into space from Europa's south polar region.
20 February 2015, 12:43 AM ET
This spectacular space wallpaper shows ESO’s Paranal Observatory in Chile soon after sunset. The last rays of the day create a spectacular orange haze as they pass through the dusty lower levels of the atmosphere, setting a perfect scene.
19 February 2015, 05:30 PM ET
For the first time, astronomers have caught a fast radio burst as it was happening and just might be zeroing in on the origins of these energetic events.
19 February 2015, 03:25 PM ET
A dim red dwarf and its brown-dwarf companion likely grazed the outer edges of the solar system 70,000 years ago in what scientists say was the closest encounter ever between our sun and another star.
19 February 2015, 02:01 PM ET
A hungry black hole has belched up a bubble of cosmic wind that could eliminate the rest of its meal and change the landscape of the entire galaxy, according to new observations.
19 February 2015, 01:18 PM ET
The traditional Chinese month-keeping is based on lunar cycles periodically offset to sync with solar events to form a 'lunisolar' calendar, this year represented by a horned farm animal. But which one depends upon who you ask.
19 February 2015, 12:32 PM ET
Designing, building and operating Laser Interferometer Gravitational-wave Observatories (LIGO) is tedious and exacting. These out-takes from "LIGO Generations" (film) show keeping a sense of humor is an essential element of the scientific method.