Search for Life Archive
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.
10 July 2013, 07:00 AM ET
Some people may be disappointed that NASA's next Mars rover won't carry a life-detection experiment, but hunting for currently existing Red Planet microbes is decidedly premature at this point, mission planners say. Looking for past life is a better bet.
09 July 2013, 03:26 PM ET
NASA's next Mars rover, slated to launch in 2020, should hunt for signs of past Red Planet life and collect samples for eventual return to Earth, a team of mission planners has determined. The robot should explore a site that once was habitable, make its
08 July 2013, 11:32 AM ET
It's been 66 years since something landed on a ranch near Roswell, N.M.
08 July 2013, 07:00 AM ET
Researchers plan to launch a tiny spacecraft to Earth orbit and beyond in the next 18 months or so, in a key test of new propulsion technology that could help cut the cost of planetary exploration by a factor of 1,000.
08 July 2013, 07:00 AM ET
A prototype Mars rover named Zoe recently drove, drilled and performed experiments autonomously in the Atacama to test out gear for future Red Planet missions.
07 July 2013, 12:19 AM ET
What was your favorite space news story of the last week?
05 July 2013, 10:47 PM ET
From a blue sun to fireworks over the space shuttle, don't miss these amazing space photos of the week.
05 July 2013, 01:27 PM ET
NASA will try to revive its ailing Kepler spacecraft later this month, possibly recovering a mission that has revolutionized the study of alien planets since its March 2009 launch.
02 July 2013, 07:17 PM ET
The Search for Extraterrestrial Intelligence can be said to have begun in 1896, but it has evolved over the years. SETI's Laurance Doyle tells what the 21st-century search for E.T. is like.
01 July 2013, 04:21 PM ET
A new estimate suggests the Milky Way alone may host 60 billion such planets around faint red dwarf stars.
01 July 2013, 07:00 AM ET
Astrobiologists use Earth as an analogue for other planets.
01 July 2013, 12:01 AM ET
Spectacular images every day.
30 June 2013, 12:31 PM ET
What was your favorite space news story of the last week?
28 June 2013, 07:45 PM ET
From space-age jewelry to what a lunar colony could look like, don't miss these amazing space photos of the week.
27 June 2013, 05:01 AM ET
Mars has been exposed to Earth life for billions of years, via meteorite strikes.
26 June 2013, 01:01 PM ET
The two 'mini-Neptune' alien planets 3,300 light-years from Earth could be the first of many more, scientists say.
25 June 2013, 02:39 PM ET
Can we get to Mars if we don't mine the moon?
25 June 2013, 01:24 PM ET
The nearby star Gliese 667c is orbited by up to seven alien planets, three of which are super-Earths that may be habitable.