Search for Life Archive
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.
29 July 2013, 07:00 AM ET
What was your favorite space news story of the last week?
25 July 2013, 05:27 PM ET
A new book celebrates the past and future of human exploration of the cosmos. "New Frontiers of Space" explores the most important people and breakthroughs in space science and spaceflight today.
25 July 2013, 09:15 AM ET
A new study takes a deeper look into the fate of life-permitting water on Earth-like planets around red dwarf stars, the most common stars in the universe.
25 July 2013, 06:30 AM ET
NASA's Kepler spacecraft is unlikely to bounce back completely from the malfunction that stalled its planet-hunting efforts two months ago, mission officials say. The prolific observatory may still be able to do exoplanet science, but not the way it used
24 July 2013, 02:28 PM ET
A new photo by NASA's sharp-eyed Mars Reconnaissance Orbiter shows the agency's Curiosity rover wrapping up work near its landing site before beginning the long trek to the huge and mysterious Mount Sharp, its ultimate science destination.
24 July 2013, 06:00 AM ET
NASA's Mars rover Curiosity is really starting to stretch its legs on the Red Planet. The 1-ton robot made by far the longest drive of its nearly year-long surface mission on Sunday, traversing 329 feet of Martian terrain.
21 July 2013, 12:35 AM ET
What was your favorite space news story of the last week?
20 July 2013, 10:40 AM ET
From a engine part recovered from Apollo 11 to an experiment that burns a flame in space, don't miss these amazing space photos of the week.
18 July 2013, 07:01 AM ET
Did life on Earth originate on Mars? Or did Earth dispatch life to Mars during an exchange of meteorites between both planets more than 3.5 billion years ago?
17 July 2013, 07:00 AM ET
Evidence continues to mount that a huge ocean covered much of the surface of Mars billions of years ago. Scientists have spotted what appears to be an ancient river delta, which may have emptied into a vast ocean that inundated up to one-third of the Red
16 July 2013, 12:57 PM ET
The gas giant planet Neptune in our solar system has 14 known moons, including the strange backwards-orbiting Triton. See how Neptune's moons orbit the giant blue planet, and what we know about the Neptunian satellites in this infographic.
16 July 2013, 07:00 AM ET
Four billion years ago, Mars had abundant water and a substantial atmosphere. Life could have evolved there, but its reign would have been short. See how scientists are planning to seek out signs of past or present life on Mars.
14 July 2013, 11:00 AM ET
What was your favorite space news story of the last week?
13 July 2013, 12:04 PM ET
From the Milky Way over rural Maine to a giant baby attacking a telescope, don't miss these amazing space photos of the week.
12 July 2013, 10:15 AM ET
NASA's Mars rover Curiosity has begun the long journey to the mission's main destination, Mount Sharp. See how it’s driving long hauls on Mars.
12 July 2013, 10:15 AM ET
A team of scientists and engineers gives proposals for NASA's 2020 Mars rover mission, a mission that will borrow the design of the 1-ton Curiosity and seek out ‘biosignatures’ on Mars.
12 July 2013, 05:00 AM ET
NASA's planet-hunting Kepler spacecraft should be able to achieve its primary mission goal regardless of whether or not it can bounce back from a recent malfunction, researchers say. It launched in 2009 to seek Earth-like planets.
11 July 2013, 09:16 AM ET
A brief rundown of the main techniques scientists use to find far-flung worlds.
11 July 2013, 09:00 AM ET
The Hubble Space Telescope has measured the true color of an exoplanet for the first time, in this case a cobalt blue that would appear similar to Earth's blue tint, though this super hot gas giant is far from habitable.
11 July 2013, 09:00 AM ET
A giant blue planet is found, but the color could be due to glass particles in the hellish planet's hot atmosphere.
11 July 2013, 08:46 AM ET
Call it the deep blue dot. For the first time, scientists have seen the visible color of a distant alien world. The exoplanet — called HD 189733b — is a "deep cobalt blue," orbiting its star 63 light-years from Earth, scientists say.