Search for Life Archive
16 November 2014, 09:50 AM ET
Alien life might flourish on an exotic kind of carbon dioxide, researchers say. This 'supercritical' carbon dioxide, which has features of both liquids and gases, could be key to extraterrestrial organisms much as water is to biology on Earth.
14 November 2014, 06:56 AM ET
Researchers have been testing out "starshade" technology, which could help astronomers find and characterize rocky, Earthlike alien worlds by blocking the overpowering light of their parent stars.
06 November 2014, 07:00 AM ET
NASA astronauts Mike Fincke and Marsha Ivins discussed their off-Earth experiences with "Interstellar" actors Matthew McConaughey, Anne Hathaway and Jessica Chastain during a Google+ Hangout Wednesday.
01 November 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in October 2014.
30 October 2014, 10:00 AM ET
Measures taken in the current Ebola outbreak may hold some clues for how to handle Martian samples brought back to Earth from the Red Planet, which could host extraterrestrial microbes.
16 October 2014, 03:06 PM ET
Experts will debate whether or not life is likely to exist on planets orbiting red dwarf stars during a live event tonight. Watch it here at Space.com.
13 October 2014, 12:58 PM ET
Frigid lakes bombarded by UV radiation and boiling, acidic springs are some of the otherworldly Earth environments where scientists plan to hunt for clues to life on Mars.
10 October 2014, 07:16 PM ET
The discovery of extraterrestrial beings — be they slimy microbes or little green men — would dramatically change the way we humans view our place in the universe. But would it shatter religion? Well, that depends on what you believe.
06 October 2014, 07:00 AM ET
The Milky Way may be home to some 3,000 extraterrestrial civilizations but the vast distances between our galactic cousins will make contact extremely rare, a new study concludes.
05 October 2014, 12:26 PM ET
What was your favorite space news story of the last week?
04 October 2014, 11:01 AM ET
From a stunning image of the Red Planet from India's first spacecraft to a spectacular new photo showing a cluster of stars, don't miss these amazing space images of the week for Oct. 4, 2014.
01 October 2014, 12:36 AM ET
See photos from astronaut Alexander Gerst who is about to take off on a mission to the International Space Station, along with five others.
01 October 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in September 2014.
30 September 2014, 07:00 AM ET
Future space telescopes hunting for signs of alien life should focus on water, oxygen and chlorophyll-like pigments, in that order, researchers said.
30 September 2014, 12:00 AM ET
A crater on Mercury stands out in low-angled sun.
29 September 2014, 07:00 AM ET
What signs of life could a far-off alien spacecraft spot on Earth? The answer could help researchers shape the hunt for E.T. in far-off solar systems.
28 September 2014, 07:00 AM ET
Following its 2017 launch, NASA's TESS mission should collect a wealth of information on new exoplanets, the majority of which should be available for follow-ups with ground-based telescopes.
26 September 2014, 03:30 PM ET
Among the nearly 2,000 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.
25 September 2014, 02:01 PM ET
The finding suggests that water is commonly incorporated into newly forming planets throughout the Milky Way galaxy and beyond, researchers said — good news for anyone hoping that Earth isn't the only world to host life.
25 September 2014, 02:00 PM ET
Complex carbon-bearing molecules detected in interstellar space suggest key ingredients for life on Earth could have alien origins.
24 September 2014, 01:01 PM ET
A Neptune-sized planet beyond the solar system has telltale traces of water vapor in its atmosphere, making it the smallest known wet exoplanet yet, scientists say. The exoplanet HAT P-11b is about four times the size of Earth and about 124 light-years aw
21 September 2014, 11:12 PM ET
What was your favorite space news story of the last week?
17 September 2014, 12:05 AM ET
The Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile captured this space wallpaper of dark cloud Lupus 4 blotting out background stars.
15 September 2014, 07:00 AM ET
A concept mission that would fire scientific missiles at Mars to search for signs of subsurface life is making technical strides, team members say, but it still needs quite a bit of financial help to get off the ground.
14 September 2014, 12:06 AM ET
What was your favorite space news story of the last week?
13 September 2014, 10:51 AM ET
From a colorful map of Rosetta Probe's comet target to a video of a trash-filled spaceship's fiery demise, don't miss these amazing space images of the week for Sept. 13, 2014.
11 September 2014, 07:12 AM ET
A team of researchers has delineated the "Venus Zone," the range of distances from a host star where planets are likely to resemble Earth's similarly sized sister planet, which has been rendered unlivably hot due to a runaway greenhouse effect.
11 September 2014, 12:00 AM ET
See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in August 2014.
10 September 2014, 03:23 PM ET
The moon will wow stargazers with a total lunar eclipse on Oct. 7 and 8, but you don't have to wait to start preparing for the event. The pre-dawn moon on Thursday, Sept. 11, will be in the same position as on Oct. 8, offering a dress rehearsal for the lu
08 September 2014, 11:30 AM ET
Big slabs of ice are sliding over and under each other within Europa's ice shell, a new study suggests. The Jovian satellite may thus be the only solar system body besides Earth to possess an active system of plate tectonics.
07 September 2014, 12:46 PM ET
What was your favorite space news story of the last week?
06 September 2014, 11:56 AM ET
From Comet Jacques to a coronal mass ejection, don't miss these amazing space images of the week for Sept. 6, 2014.
05 September 2014, 06:40 AM ET
In December 2013, researchers using NASA's Hubble Space Telescope announced they had spotted evidence of geysers erupting from Europa's south polar region. But follow-up Hubble observations in January and February showed no signs of the plumes.
02 September 2014, 07:00 AM ET
Alien organisms may betray their presence by pumping stinky chemicals into their home planets' skies, researchers say.
31 August 2014, 01:06 AM ET
What was your favorite space news story of the last week?
30 August 2014, 12:22 PM ET
From donning a new space suit to a beautiful star explosion, don't miss these amazing space images of the week for Aug. 30, 2014.