Search for Life Archive
13 November 2013, 03:24 PM ET
An asteroid or comet smashing into the surface of a planet can spell doom for living creatures, but if the impact isn't large enough to completely decimate a planet's inhabitants, then the crater can ultimately provide a habitat for life.
12 November 2013, 07:10 AM ET
Mysterious cosmic rays constantly bombard Earth from outer space. Now scientists find these energetic particles could limit where life as we know it might exist on alien planets.
11 November 2013, 06:00 AM ET
Over the next decade, NASA and the European Space Agency aim to launch a handful of spacecraft that should discover many thousands of additional exoplanets and characterize some of the most promising new finds in detail.
09 November 2013, 12:22 AM ET
What was your favorite space news story of the last week?
08 November 2013, 09:22 PM ET
From a bizarre asteroid to the strongest solar flare of 2013, don't miss these amazing space photos of the week for Nov. 9, 2013.
08 November 2013, 08:48 PM ET
From an astronaut's stunning images taken from space to an eclipse chaser's look at a rare solar eclipse, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
07 November 2013, 03:30 PM ET
When a Mars rover leaves a trail of tracks in the Martian dunes, is it a tragic imprint of human intrusion on a pristine alien landscape billions of years old, or the first hopeful sign of intelligent life arriving on a long-dead planet?
05 November 2013, 08:50 AM ET
Scientists are drawing up plans to repurpose Kepler, whose original exoplanet hunt was derailed in May. The potential "K2" mission would peer inside the plane of Earth's orbit, hunting mainly for planets crossing the face of small stars.
04 November 2013, 04:01 PM ET
The search for other Earth-like planets in the galaxy got a boost today, as Kepler's planet count bumped into the thousands — including more than 100 in the so-called habitable zone, where liquid water could exist.
03 November 2013, 10:58 AM ET
What was your favorite space news story of the last week?
02 November 2013, 05:28 PM ET
From a Witch's Broom Nebula to a spectacular 3D Mars Video, don't miss these amazing space photos of the week for Nov. 2, 2013.
01 November 2013, 12:01 AM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in October 2013.
30 October 2013, 02:01 PM ET
The exoplanet Kepler-78b is just 20 percent wider and about 80 percent more massive than Earth, with a density nearly identical to that of Earth, two research teams report in separate papers published online today in the journal Nature.
28 October 2013, 07:50 AM ET
If scientists ever find a true diamond planet in an alien solar system, they shouldn't expect to see life teeming on its surface. The same carbon-rich conditions thought to give rise to diamond-packed worlds would also create a barren landscapes.
27 October 2013, 10:17 AM ET
What was your favorite space news story of the last week?
26 October 2013, 02:51 PM ET
From a stunning image of a 'Canyon of Fire' ripping across the sun to photos of Comet ISON, don't miss these amazing space photos of the week for Oct. 26, 2013.
26 October 2013, 12:45 PM ET
From dancing auroras over Maine and Norway to a beautifully captured image of 'Cygnus Wall' don't miss these stunning night sky photos by stargazers and SPACE.com readers.
25 October 2013, 11:56 AM ET
Earth likely got most of its water from asteroid impacts nearly 4.6 billion years ago, shortly after the solar system came into being. Researchers found evidence that water disappeared from a meteorite's parent asteroid soon after the space rock formed.
24 October 2013, 01:09 PM ET
Should we terraform Mars to make it more Earth-like? Or should we "renovate" the Red Planet, in an attempt to resuscitate any native life that might have survived in environmental niches for billions of years?
24 October 2013, 08:00 AM ET
A prototype of Europe's planned ExoMars rover, dubbed Bridget by its control team, spent several days working in Chile as part of the Sample Field Acquisition Experiment with a Rover (SAFER) trial between Oct. 7 and 13.
23 October 2013, 02:52 PM ET
Two of the five main databases that catalog exoplanet discoveries list 1,010 confirmed alien worlds as of today. That's a lot of progress since 1992, when researchers found the first-ever exoplanets orbiting a spinning neutron star, or pulsar.
23 October 2013, 12:01 PM ET
Humanity should start thinking about how to interact with alien species long before coming into contact with extraterrestrial life, experts say.
21 October 2013, 07:00 AM ET
What would life found in water dating back to more than a billion years ago look like? Scientists are hoping to find out.
20 October 2013, 10:26 AM ET
What was your favorite space news story of the last week?
19 October 2013, 02:18 PM ET
From an orange Orion nebula to glowing auroras, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
19 October 2013, 01:01 PM ET
From a stunning image of Saturn to a black hole's indigestion, don't miss these amazing space photos of the week for Oct. 19, 2013.
17 October 2013, 11:10 AM ET
Planetary scientist Jim Bell recently shared nearly 10 years' worth of photos from NASA's Spirit, Opportunity and Curiosity rovers, which have shed a great deal of light on the Red Planet's wetter and warmer past.
17 October 2013, 07:01 AM ET
A NASA telescope is probing the atmospheres and temperatures of alien planets. Designed when the number of confirmed exoplanets could be counted on two hands, NASA's Spitzer Space Telescope has become a strong observer of these distant bodies.
13 October 2013, 10:30 AM ET
What was your favorite space news story of the last week?
12 October 2013, 02:33 PM ET
From a stunning view of the Milky way to glowing auroras, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
12 October 2013, 12:24 PM ET
From glowing northern lights to the largest solar sail , don't miss these amazing space photos of the week for Oct. 12, 2013.
10 October 2013, 02:01 PM ET
The researchers found signs of a rocky surface and lots of water around a white dwarf star called GD 61, marking the first time that these two kwy ingredients of a potentially habitable planet have been found together beyond Earth's solar system.