Search for Life Archive
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.
10 October 2013, 01:20 PM ET
The origin of life on Earth is still a hotly-debated topic. There are many different theories on how life was kick-started, as well as various experiments underway attempting to understand the processes involved.
09 October 2013, 11:52 AM ET
An alien signal could take many forms. From radio to light, and even genetic manipulation only visible in DNA, extraterrestrial communication could be extremely diverse.
08 October 2013, 02:09 PM ET
A handful of possible worlds discovered by an alien planet hunting spacecraft are skimming the surfaces of their host stars, new research shows.
07 October 2013, 11:52 AM ET
Finding life on alien planets might be harder than scientists originally expected. The search for habitable and inhabited exoplanets is focused on M dwarf stars.
06 October 2013, 09:00 AM ET
What was your favorite space news story of the last week?
05 October 2013, 08:00 AM ET
Don't miss the many great space images from the week of Oct. 5, including a private spacecraft's first International Space Station arrival, the spectacular launch of a brand-new private rocket and Comet ISON as seen from Mars orbit.
04 October 2013, 12:57 PM ET
Researchers have developed an observational strategy that would distinguish between two very different types of atmospheres — one associated with super-Earth exoplanets, which may be capable of supporting life, and the other with lifeless mini-Neptunes.
02 October 2013, 01:01 PM ET
See photos and images of ancient volcanoes on Mars from spacecraft at the Red Planet.
02 October 2013, 09:01 AM ET
An alien planet orbits a star other than our sun, and is sometimes called an "exoplanet." Learn more about the types of alien planets, including exoplanets and extrasolar planets, and get the latest news.