Search for Life Archive
24 July 2014, 02:44 PM ET
The cloudier an alien planet is, the closer it can get to its star and still remain potentially life-friendly, researchers say. See what it means for life on planets even as hellish as Venus.
24 July 2014, 10:30 AM ET
Scientists with the Hubble Space Telescope are hosting a webcast to answer questions about how NASA and the European Space Agency's huge eye in the sky works.
22 July 2014, 07:01 AM ET
The newly discovered exoplanet Kepler-421b — which crosses the face of, or transits, its host star from Earth's perspective — takes 704 days to complete one orbit. Thus, it has the longest year known for any transiting alien world.
20 July 2014, 09:01 AM ET
Space.com was founded on July 20, 1999 on the 30th anniversary of NASA's Apollo 11 moon landing. Here, managing editor Tariq Malik recounts the last 15 years of Space.com, and the wonder of it all.
20 July 2014, 12:57 AM ET
What was your favorite space news story of the last week?
19 July 2014, 12:31 PM ET
From a cosmic rubber ducky to an experimental space plane, don't miss these amazing space images of the week for July 19, 2014.
17 July 2014, 03:48 PM ET
Imaged on 14 July 2014 by OSIRIS, Rosetta’s scientific imaging system, this movie compiles 36 interpolated images each separated by 20 minutes, providing a 360° preview of the complex shape of the comet.
16 July 2014, 01:00 PM ET
NASA has issued an open call for designs of scientific instruments to send on a future mission to explore Jupiter's moon Europa.
15 July 2014, 07:00 AM ET
While NASA's James Webb Space Telescope will be capable of finding signs of life on nearby exoplanets after its 2018 launch, a bona fide hunt for aliens beyond Earth's neighborhood will require even bigger instruments, experts say.
13 July 2014, 06:07 AM ET
What was your favorite space news story of the last week?
11 July 2014, 09:41 PM ET
From flaming rocket debris to a typhoon's eye, don't miss these amazing space images of the week for July 11, 2014.
09 July 2014, 04:52 PM ET
Do you want to help name an alien planet? Starting next year, space fans around the world will get the chance to vote on their favorite names for exoplanets and the planets' host stars.
08 July 2014, 02:05 PM ET
The 30-minute webcast, which is called "Spotlight Live: The Hunt for Other Worlds Heats Up," begins at 3:00 p.m. EDT Wednesday. You can watch it live here on Space.com, courtesy of the nonprofit Kavli Foundation, which is hosting the discussion
08 July 2014, 02:00 PM ET
Three astrophysicists will discuss the latest exciting discoveries in the field of exoplanet science Wednesday (July 9), and you can follow along live here at Space.com — and ask questions if you so desire.
07 July 2014, 02:52 PM ET
An incredibly detailed new map of Mars' southern highlands shows how profoundly liquid water sculpted the region long ago, especially two canyon systems known as Waikato Vallis and Reull Vallis.
07 July 2014, 07:35 AM ET
'Active SETI' sounds like science fiction, but some astronomers are discussing it seriously today. The idea is a controversial, hot-button issue, with some researchers wary of sending signals out to touch base with intelligent aliens.
06 July 2014, 12:47 PM ET
What was your favorite space news story of the last week?
05 July 2014, 12:16 AM ET
From a stellar womb to a cosmic cannibal, don't miss these amazing space images of the week for July 5, 2014.
04 July 2014, 10:57 PM ET
From the half-lit moon and mars to Jupiter's farewell, don't miss these amazing objects to watch in the night sky.
03 July 2014, 02:01 PM ET
Astronomers have for the first time detected a rocky alien world in an Earth-like orbit around just one star in a two-star system. The new find suggests that such worlds may be common, researchers say.
02 July 2014, 03:30 PM ET
Powerful radio signals that Jupiter generates could be used to help researchers scan its giant moons for oceans that could be home to extraterrestrial life, according to a recent study submitted to the journal Icarus.
01 July 2014, 07:00 AM ET
Cosmic impacts can create novel habitats where life can flourish and preserve the remains of pre-existing life for millions of years, new research suggests.
01 July 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.
30 June 2014, 12:00 PM ET
SETI is stepping up its search for alien lifeforms on far off worlds. The Search for Extraterrestrial Intelligence (SETI) program recently announced two new methods to search for signals that could come from life on other planets.
29 June 2014, 11:14 AM ET
What was your favorite space news story of the last week?
28 June 2014, 12:37 PM ET
From the true size of sun's atmosphere to a trio of huge black holes, don't miss these amazing space images of the week for June 28, 2014.
27 June 2014, 10:00 AM ET
The new film "Earth to Echo" — which follows a group of kids on a journey to help save a small alien robot — might have a bit of extraterrestrial truth at its core, one alien-hunting astronomer says.
25 June 2014, 04:48 PM ET
Astronomers have discovered an exoplanet in the star Gliese 832's "habitable zone" — the just-right range of distances that could allow liquid water to exist on a world's surface. The planet, known as Gliese 832c, lies just 16 light-years from Earth.
23 June 2014, 04:44 PM ET
When NASA's New Horizons spacecraft leaves the solar system, it will carry with it a digital message from people on Earth.
23 June 2014, 03:19 PM ET
A new study gives hope for the possibility that many super-Earth planets orbiting distant stars have exposed continents rather than just water-covered surfaces.
20 June 2014, 10:21 PM ET
What was your favorite space news story of the last week?
20 June 2014, 10:02 PM ET
From a strange gas stream blotting out a galaxy's bright core to perfect espresso in space, don't miss these amazing space images of the week for June 21, 2014.
20 June 2014, 04:15 PM ET
Born in a disc of gas and rubble, planets eventually come together as larger and larger pieces of dust and rock stick together. They may be hundreds of light-years away from us, but astronomers can nevertheless watch these planets as they form.
17 June 2014, 10:00 AM ET
The proposed Wide-field Infrared Survey Telescope (WFIRST) mission, which NASA is designing to probe the nature of mysterious dark energy, could discover thousands of alien planets as well.
16 June 2014, 07:15 AM ET
Samples scooped from the Martian atmosphere could provide scientists with their first hands-on experience with the red planet.
15 June 2014, 09:40 AM ET
What was your favorite space news story of the last week?