Search for Life Archive
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.
01 October 2013, 01:48 PM ET
Ionic or plasma water may exist deep within Gliese 1214 b, a super-Earth with a water-rich atmosphere. Astronomers have determined that the atmosphere of super-Earth Gliese 1214 b is likely water-rich. However, this exoplanet is no Earth twin.
01 October 2013, 12:00 AM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in September 2013.
29 September 2013, 09:25 AM ET
What was your favorite space news story of the last week?
28 September 2013, 12:22 PM ET
From a stunning view of the Milky way to the harvest moon, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
28 September 2013, 11:06 AM ET
From a supersonic shockwave to the glowing harvest moon, don't miss these amazing space photos of the week for Sept. 28, 2013.
27 September 2013, 12:47 PM ET
A toxic chemical in Martian dirt may obscure scientists' search for extraterrestrial life. Perchlorates on the Red Planet may cause reactions in Curiosity's soil samples that destroy organic compounds, researchers say.
26 September 2013, 09:00 PM ET
Four of the five main databases that catalog exoplanet discoveries now list more than 900 confirmed alien worlds, and two of them peg the tally at 986 as of today (Sept. 26). So the 1,000th exoplanet may be spotted in a matter of days or weeks.
26 September 2013, 03:30 PM ET
Among the more than 900 planets found beyond our solar system, there are volcanic super-Earths, gas giants that dwarf Jupiter and worlds with multiple sunsets. Here are some of the most incredible.