23 August 2013, 01:28 PM ET
In the 20 years since the idea was first proposed, scientists have improved their understanding of an ice-covered "snowball Earth." Researchers Linda Sohl recently spoke about how the idea has evolved along with the technology that studies it.
23 August 2013, 09:57 AM ET
The northwestern part of Greece is pictured in this space wallpaper by the Landsat-8 satellite. The Ionian Sea dominates the left side of the image, with the Ambracian Gulf near the center.
21 August 2013, 04:00 PM ET
A NASA spacecraft called Cassini took photos of Earth from its spot in the Saturn system while all of humanity waved at the ringed wonder on July 19. A new NASA collage lets you explore photos of that day by space fans around the world.
21 August 2013, 03:42 PM ET
See photos from NASA's ' Wave at Saturn' campaign to urge people around the world to wave at the ringed planet on July 19, 2013. On that day, NASA's Cassini spacecraft took a cosmic portrait of Earth as it appeared from Saturn.
14 August 2013, 07:16 AM ET
See fantastic photographs of Earth taken by astronaut Karen Nyberg aboard the International Space Station during Expedition 36/37 in 2013.
12 August 2013, 12:15 PM ET
ESA astronaut Luca Parmitano took this photo of the Mediterranean and the Pleiades as seen from the International Space Station in this cool space wallpaper. "The Mediterranean, the Pleiades and a storm in the distance," he Tweeted on July 29, 2013.
06 August 2013, 04:46 PM ET
Lightning on Earth can be a spectacular sight, but astronauts in space have a unique view on the electrical events. See dazzling photos of Earth’s lightning as seen from space in these cosmic images.
24 July 2013, 10:45 AM ET
This rare space wallpaper taken on July 19 by NASA's Cassini spacecraft shows Saturn's rings and our planet Earth and its moon in the same frame.
23 July 2013, 04:16 PM ET
Significant warming is imminent and inevitable at current level of greenhouse gas carbon dioxide concentration (400 parts per million), if it rises to 800 ppm, North America could rise 8 degrees Fahrenheit warmer (on average) with major consequences.
23 July 2013, 02:08 PM ET
It's not often that some event comes along to really show humanity its true place in the universe, but two NASA spacecraft have just managed the feat. The photos of Earth from Saturn and Mercury give us perspective on humanity's role.
22 July 2013, 05:58 PM ET
A portrait of Earth from a distance was snapped Friday (July 19) and released today by the team behind NASA's Cassini probe at Saturn. In the photo, Earth appears as a tiny pinprick amid the rings and sphere of Saturn, which Cassini has been orbiting sinc
22 July 2013, 02:59 PM ET
Earthlings en mass waved at Saturn on Friday (July 19) for a planetary portrait session being snapped by NASA's Cassini probe at the ringed planet. Cassini was taking advantage of a rare total eclipse of the sun from Saturn to snap Earth's photo.
11 July 2013, 07:01 AM ET
In this interview, Dr. David Grinspoon discusses the implications of the Anthropocene — a proposed geological time period that would recognize humanity as a global force shaping the landscape and evolution of our planet.
10 July 2013, 02:42 PM ET
Periodic wobbles in Earth's core change the length of a day every 5.9 years, according to a study published today (July 10) in the journal Nature.
10 July 2013, 09:49 AM ET
The foothills of the Andes Mountains near the southern coast of Peru were captured by the Kompsat-2 satellite, as seen in this cool space wallpaper.
03 July 2013, 11:37 AM ET
Using an innovative process that combines hundreds of flat 2D space photos, the upcoming IMAX movie 'In Saturn's Rings' brings depth to awe inspiring photos of planets and galaxies, allowing viewers to 'fly through' these cosmic wonders.
03 July 2013, 09:30 AM ET
On July 1st, 2013, a large prominence erupted off the Sun's eastern limb and on July 3rd, an M1.5-class flare made a statement. Neither eruptions were Earth-directed. NASA's Solar Dynamics Observatory snapped imagery.
01 July 2013, 05:00 PM ET
The recently launched Proba-V miniaturised satellite captured this space wallpaper over the border region of northern Syria, southeastern Turkey and northern Iraq on May 28, 2013.
01 July 2013, 02:47 PM ET
The NASA probe will capture imagery of of the ringed planet with Earth in its backdrop on July 19th, 2013. NASA's Jet Propulsion Laboratory has created a public out reach program called 'Wave At Saturn' for the event and will compile a mosaic.
28 June 2013, 11:15 AM ET
ESA astronaut snapped this view of moonset from the International Space Station as seen in this stunning space wallpaper. Parmitano is onboard the orbital outpost as part of ESA's long duration mission, Volare.
26 June 2013, 08:19 AM ET
25% of the Earths surface is green with vegetation. The NASA/NOAA Suomi NPP satellite detects the fine differences is vegetation across the planet and has delivered some of the highest detailed data to date.
25 June 2013, 12:38 PM ET
The Spanish city of Barcelona is pictured in this space wallpaper by Japan’s ALOS satellite. Along the coast, we can see the Barcelona’s port—one of Europe’s top ten largest container ports. This image was released June 21, 2013.
24 June 2013, 10:10 AM ET
Arctic-permafrost holds more carbon than all fossil-fuel emissions since record-keeping began in 1850. NASA's Carbon in Arctic Reservoir's Vulnerability Experiment (CARVE) monitors melting which could expose carbon, accelerating global warming.
21 June 2013, 10:00 AM ET
See the top 10 cool facts about our natural satellite, the moon.
21 June 2013, 07:00 AM ET
NASA's NPP Suomi satellite captured these amazing views of Earth's plant life from space. See what the vegetation maps reveal.
21 June 2013, 06:45 AM ET
NASA's NPP Suomi satellite captured these amazing views of Earth's plant life from space.
19 June 2013, 01:43 PM ET
Scientists are asking Earthlings to pose for our planet's portrait July 19.
14 June 2013, 01:32 PM ET
This space wallpaper is a compilation of three images from Envisat’s radar and shows where southwestern Africa’s Okavango River empties into the inland Okavango Delta in northern Botswana.
31 May 2013, 01:31 PM ET
This spectacular space wallpaper shows northwestern Crete, the largest and most populous of the Greek islands. It is a compilation of three radar images from Japan’s ALOS satellite. Image released March 13, 2013.
29 May 2013, 01:01 PM ET
Hellish Venus Dried Out Because It's Closer to Sun
21 May 2013, 02:19 PM ET
See photos of the Oklahoma tornadoes that struck on May 20, 2013, as viewed from space.
20 May 2013, 11:04 AM ET
This stunning space wallpaper is a Landsat image of the Clearwater Lakes in Canada’s Quebec province. Located to the east of the Hudson Bay, what appears to be two separate lakes is actually a single body of water that fills two depressions.
20 May 2013, 07:00 AM ET
The iconic city as seen through other planets' air.
20 May 2013, 07:00 AM ET
The project showcases the diversity of worlds in our solar system.
13 May 2013, 04:17 PM ET
The plankton blooms occur most springs.
09 May 2013, 02:21 PM ET
Istanbul and the surrounding area in northwestern Turkey are captured in this space wallpaper acquired by Envisat’s MERIS instrument on June 9, 2011. To the north is the Black Sea, which connects to the Sea of Marmara (center) via the Bosphorus strait.