Search for Life Archive
29 August 2013, 08:20 AM ET
The 1-ton Curiosity rover used autonomous navigation for the first time on Tuesday. The robot will likely use this "autonav" capability more and more as it continues the long trek toward the base of Mars' huge Mount Sharp, NASA officials said.
28 August 2013, 06:05 PM ET
We may all be Martians. Evidence is building that Earth life originated on Mars and was brought to our planet aboard a meteorite, says biochemist Steven Benner of The Westheimer Institute for Science and Technology in Florida.
27 August 2013, 07:44 PM ET
Red dwarf stars, which weigh between 10 and 50 percent as much as our sun, are the most common stars in our galaxy. Previous studies have suggested that planets around such stars may be too dry for life, but new research is questioning that idea.
25 August 2013, 01:19 AM ET
What was your favorite space news story of the last week?
24 August 2013, 11:41 AM ET
From amazing shots of the "Blue Moon" to a captivating new star explosion, don't miss these stunning night sky photos by stargazers and SPACE.com readers.
20 August 2013, 03:50 PM ET
Prior attempts to look for alien laser signals concentrated on isolated and intense bursts of light. Now scientists are focusing on repetitive but much fainter laser signals received over a longer amount of time.
20 August 2013, 06:53 AM ET
Astronomers have discovered a scorching-hot "lava world" whose year lasts just 8.5 hours and determined that another planet candidate is likely composed almost entirely of iron. Both worlds were spotted by NASA's Kepler spacecraft.
18 August 2013, 09:00 AM ET
What was your favorite space news story of the last week?
17 August 2013, 07:00 AM ET
From the beginning of an aurora to starry sky over a national park, don't miss these jawdropping night sky photos by stargazers and SPACE.com readers.
17 August 2013, 12:39 AM ET
From a new star explosion to the possibilities of the hyperloop, don't miss these amazing space photos of the week for Aug. 18, 2013.
16 August 2013, 12:30 PM ET
A look (in no particular order) at 10 of the 25 most influential people in space, as chosen recently by a new book from Time Books.
15 August 2013, 03:04 PM ET
NASA announced Thursday (Aug. 15) that it will stand down on attempts to recover the exoplanet-hunting Kepler spacecraft, which has exceeded its mission life. NASA is now looking for new ways to use the spacecraft for other science purposes.
14 August 2013, 12:22 AM ET
Is there life on Europa, Jupiter's moon? Perhaps — but researchers may not know for years, or even decades, depending on the outcome of wars over NASA's budget that broke out before Congress went home for its August recess. Here is why.
13 August 2013, 12:00 PM ET
A hot alien planet that's as big as Jupiter and cobalt blue in color has been spotted crossing in front of its parent star in the X-ray spectrum — a first for scientists. Researchers have seen such eclipses in optical light for nearly 20 years.
12 August 2013, 03:37 PM ET
If humanity hopes to establish a lasting presence on Mars, it will have to learn to live off the land. Ambitious exploration efforts have always aimed for self-sufficiency, but the need is especially acute when "the new world" is another planet.
11 August 2013, 09:08 AM ET
What was your favorite space news story of the last week?
10 August 2013, 07:00 AM ET
From NASA's 1970s visions of a space colony to a mock Mars mission and views of lightning from space, don't miss these amazing space photos of the week for Aug. 10, 2013.
08 August 2013, 08:00 AM ET
The top priority of a lander mission to Jupiter's potentially life-supporting moon Europa should be investigating the composition and chemistry of its subsurface ocean, scientists say. It should also study the dynamics of the moon's ice shell.
07 August 2013, 07:00 AM ET
It’s been a year since NASA's Curiosity rover touched down on Mars, and the mission's science and engineering teams celebrated the occasion in style here at NASA's Jet Propulsion Laboratory on Monday (Aug. 5).
07 August 2013, 07:00 AM ET
NASA is asking scientists for ideas about new ways to use its Kepler space telescope, whose planet-hunting mission was stalled by a malfunction three months ago. The space agency issued a call for new mission proposals on Friday (Aug. 2).
06 August 2013, 03:33 PM ET
In its first year on Mars, NASA's Curiosity rover has made discoveries that should help pave the way for human missions to the Red Planet in the next few decades. The robot's landing success and radiation measurements should be key, Charles Bolden said.
06 August 2013, 12:24 PM ET
NASA’s Mars rover Curiosity landed on the Red Planet on Aug. 5, 2012 in a dazzling space engineering feat. One year later, the rover has found evidence that Mars was once habitable, had running water and more.
06 August 2013, 11:54 AM ET
At four times the size of Jupiter, this alien planet may be huge, but it's the smallest photographed around a star like our sun. Bluer than expected, the exoplanet dubbed GJ 504b is likely pinkish to dark magenta in color.
06 August 2013, 11:32 AM ET
Astronomers have snapped a picture of the smallest alien planet yet found around a star like our sun using a technique to photograph exoplanets directly from Earth. Bluer than expected, the gas planet would be the color of a "dark cherry blossom."
06 August 2013, 07:00 AM ET
Grotzinger, a geologist at the California Institute of Technology in Pasadena, discusses the highlights of Curiosity's mission so far, what the rover may discover in the future and why it didn't set out for its main destination right away.
05 August 2013, 12:43 PM ET
NASA is marking the Curiosity rover's first year on Mars with a commemorative medal minted from metal used in the engineering of the robot explorer. The 1-ton, six-wheeled rover landed in Mars' Gale crater on the night of Aug. 5, 2012.
05 August 2013, 07:00 AM ET
One year ago today, Curiosity survived its harrowing and unprecedented landing, setting off a series of celebrations around the world. The robot has since helped scientists determine that Mars could have supported microbial life long ago.
04 August 2013, 11:32 AM ET
What was your favorite space news story of the last week?
01 August 2013, 03:25 PM ET
What is life? In this interview, Gerald Joyce of the Scripps Research Institute reveals why it’s been so hard for scientists to come up with a definition that encompasses the multiple dimensions of life as we know it.
01 August 2013, 02:34 PM ET
Scientists are eager to learn if Europa's huge subsurface ocean harbors alien life. See how Europea's frozen surface covers a suspected vast ocean of water that could be a home for microbial life. This SPACE.com infographic shows how.
01 August 2013, 12:01 AM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in July 2013.
31 July 2013, 01:44 PM ET
Future life-seeking missions on other worlds may be in for a tough time if all evidence of past or present life is below the surface. Researcher Jan Amend is studying microbes that live underground on Earth.