23 December 2013, 05:08 PM ET
This message from NASA administrator Charles Bolden was sent to the moon and back with only a few seconds of delay. The Lunar Laser Communications Demonstration mission aboard NASA's LADEE spacecraft successfully received and retransmitted the video.
23 December 2013, 12:12 PM ET
See stunning images taken by astronaut Rick Mastracchio aboard the International Space Station during the Expedition 38/39 mission in 2013/2014.
23 December 2013, 11:00 AM ET
See spectacular photographs taken by astronaut Mike Hopkins aboard the International Space Station during the Expedition 37/38 mission in 2013.
16 December 2013, 01:33 PM ET
A large coronal hole has rotated its way into an Earth-affecting position. It is a dark region where the Sun's magnetic field is more open and emits high-speed solar wind. Auroras may be on tap for Earth as a result .
13 December 2013, 11:20 AM ET
Astronauts have beamed down their views of the Earth from the International Space Station for years, but a new video shows their unique sights in a new light.
12 December 2013, 10:46 AM ET
The banning of ozone-depleting chemicals hasn't yet caused detectable improvements in the Antarctic ozone hole. That's not because the hole isn't healing. Rather, wind patterns are responsible for the varying size of the ozone hole.
10 December 2013, 04:35 PM ET
NASA's Juno spacecraft captured an amazing "starship-like view" of Earth and the moon as it made a speedy flyby past our planet on its way to Jupiter in October.
10 December 2013, 02:40 PM ET
This cosmic pirouette of Earth and our moon was captured by the Juno spacecraft as it flew by Earth on Oct. 9, 2013. Set be inserted into Jupiter orbit in August 2016.
10 December 2013, 12:37 PM ET
A new record for cold temperatures minus 136 F (minus 93.2 C) was set Aug. 10, 2010 on the East Antarctic Plateau. NASA scientists have figured out how our planet creates these bone chilling temperatures.
06 December 2013, 10:01 PM ET
More than 20,000 scientists will descend on San Francisco this week for the annual meeting of the American Geophysical Union.
06 December 2013, 11:13 AM ET
This space wallpaper is an Envisat radar image acquired over the city of Boca do Acre in western Brazil. The city lies within Amazonas state, the largest Brazilian state by area, and almost completely covered by the Amazon Rainforest.
27 November 2013, 01:32 PM ET
Amid one of the busiest travel weeks for Americans, NASA released a nighttime image of the nation from space, illuminating the arteries of transportation that will get so much use around Thanksgiving Day.
26 November 2013, 05:05 PM ET
NASA's STEREO-A spacecraft has had its eyes set on the comet for the past few days and has delivered the best time-lapse to date. Comet ISON and the smaller Comet Enke, along with Earth and Mercury can be seen. (looped 3X)
22 November 2013, 10:06 AM ET
As the possible 'comet of the century' (ISON) nears the Sun, it has come within the viewing range of the NASA Sun observing satellite. Earth, Mercury and the further away Comet Enke were all visible to the spacecraft on Nov. 21, 2013. (looped)
20 November 2013, 03:36 PM ET
The recently returned to Earth NASA astronaut talks about adjusting to gravity and her time on the International Space Station with SPACE.com's @MiriKramer.
15 November 2013, 12:31 PM ET
The Dasht-e Lut salt desert in southeast Iran is captured in this stunning space wallpaper. The desert is often called the ‘hottest place on Earth’ as satellites measured record surface temperatures there for several years.
08 November 2013, 07:30 AM ET
Moon-forming giant impact caused a giant magma ocean on Earth; life appeared millions of years later, hitching a ride on a Martian rock, a scientist says.
05 November 2013, 12:50 PM ET
Constellations seen from Earth inspire wonder in many skywatchers, but what do they look like when viewed from space? One astronaut on the International Space Station is beaming down her special cosmic views to Earthlings via social media.
03 November 2013, 12:00 PM ET
A rare hybrid solar eclipse will take place on November 3, 2013, traversing North Atlantic and equatorial Africa.
03 November 2013, 11:41 AM ET
A rare hybrid solar eclipse, which include partial and total eclipses of the sun, wowed skywatchers around the world, from North America to Africa, on Sunday (Nov. 3). See amazing photos of the strange solar eclipses.
29 October 2013, 09:58 AM ET
The young moon may have been a magma "mush" for hundreds of millions of years before it solidified, a scientist says.
21 October 2013, 12:33 PM ET
This vivid Kompsat-2 space wallpaper shows the Amazon River in the heart of northern Brazil’s rainforest. The false color makes land vegetation appear pink, while water appears green and dark blue.
18 October 2013, 03:28 PM ET
The moon rises above the Pacific in this spectacular space wallpaper taken March 4, 2005, just three minutes before the point of closest approach during Rosetta's Earth fly-by. This image was released Oct. 11, 2013.
16 October 2013, 10:58 AM ET
Just like the moon, Mercury is a desolate, rocky and airless body, albeit a bit bigger than Earth's satellite, said Sean Solomon, the principal investigator for NASA's Messenger mission to Mercury.
11 October 2013, 07:01 AM ET
Clouds formed under Martian conditions in a three-story-tall chamber in Germany after researchers cranked up the humidity to 190 percent — nearly double the threshold required for clouds on our own planet.
09 October 2013, 10:36 AM ET
Deep in the Sahara Desert, the Al Jawf oasis in southeastern Libya is pictured in this space wallpaper from Japan’s ALOS satellite.
01 October 2013, 04:23 PM ET
The NASA mission to Jupiter (Juno) will use a gravity assist from Earth to send it on its way to the Gas Giant. There will also be opportunities to see 9% more of the moon on its eastern and western limbs.
27 September 2013, 11:57 AM ET
Is the moon a present from Venus, which once had a moon and then lost it? A wild new theory puts the scenario out there.
27 September 2013, 11:50 AM ET
According to models, temps and precip. will change dramatically over the next 87 years, with amounts varying per location. Worldwide land area temperatures are predicted to increase, along with areas of heavier and decreased precipitation.
27 September 2013, 07:00 AM ET
NASA astronaut Karen Nyberg captures stunning image of the Earth's horizon at sunset reflecting off the International Space Station's solar arrays on Sept. 18. See how she did it here.
16 September 2013, 10:36 AM ET
Humanity has reached a bottleneck this century: Technical developments could cause catastrophic damage to the planet, or they could save us from our man-made quandary.
04 September 2013, 03:55 PM ET
This space wallpaper is a comparison of how big the moons of Mars appear to be, as seen from the surface of Mars, in relation to the size that Earth's moon appears to be when seen from the surface of Earth.
04 September 2013, 01:32 PM ET
Learn how you can get your questions answered by NASA's climate scientists in this public outreach program.
03 September 2013, 01:23 PM ET
A meteor or comet impact near Quebec heaved a rain of hot melted rock along the Atlantic Coast about 12,900 years ago, a new study claims. The new research impacts a controversial theory about a big climate shift called the Younger Dryas.
26 August 2013, 03:58 PM ET
Changes in temperature, rainfall and wind speed over the next 77 years increases the likelihood of extreme fire events across large portions of the U.S., Canada and Mexico.
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.