07 November 2012, 07:01 PM ET
The planet HD 40307g, 44 light-years away, is seven times the Earth's mass and could have liquid water on its surface.
23 October 2012, 04:50 PM ET
See how different types of solar flares stack up in this SPACE.com infographic.
16 October 2012, 08:19 PM ET
Astronomers have discovered an Earth-size planet orbiting one of the nearest stars to our sun: Alpha Centauri B.
15 October 2012, 03:07 PM ET
Astronomers using the Kepler Space Observatory have spotted a record five planets crammed in close to their parent star, 1,100 light-years from Earth.
14 October 2012, 01:21 AM ET
The daredevil's jump from 120,000 feet altitude requires the use of a space suit due to the low temperature and thin air.
10 October 2012, 11:50 AM ET
SpaceShipTwo will carry six passengers up past 328,000 feet altitude (100 kilometers), the point where astronaut wings are awarded.
06 October 2012, 05:13 AM ET
See inside SpaceX's private Dragon space capsule and Falcon 9 rockets.
03 October 2012, 06:15 PM ET
On Oct. 4, 1957, the Soviet Union stunned the world with its surprise launch of Sputnik-1.
27 September 2012, 06:14 PM ET
NASA's Mars rover Curiosity has discovered dried-up signs of an ancient stream on the Martian surface.
14 September 2012, 02:03 PM ET
Astronomers searching for another Earth are getting closer, thanks to recent discoveries by the Kepler space telescope.
12 September 2012, 03:13 PM ET
See how the historic first manned moon landing worked in this SPACE.com infographic about Apollo 11.
31 August 2012, 04:26 AM ET
Thought to be called "blue" after an old english term meaning "betrayer," a Blue Moon is an extra full moon that occurs due to a quirk of the calendar.
28 August 2012, 06:30 PM ET
For the first time, scientists studying data from the Kepler Space Telescope have found multiple planets orbiting a binary star.
23 August 2012, 07:16 AM ET
See how twin NASA spacecraft will look inside Earth's radiation belts in this SPACE.com infographic.
23 July 2012, 03:49 PM ET
The mountain-climbing rover heads for Mount Sharp, rising 3 miles (5 kilometers) above Gale Crater.
20 July 2012, 03:39 PM ET
Japan's H-2 Transfer Vehicles are disposable cargo ships that carry supplies to the International Space Station.
11 July 2012, 01:33 PM ET
Dwarf planet Pluto has one giant moon, Charon, but now is known to have four more tiny satellites.
11 July 2012, 10:20 AM ET
Learn all about Pluto's weirdly eccentric orbit, four moons and more in this SPACE.com infographic.
06 July 2012, 05:13 PM ET
From July through August, planet groupings in the pre-dawn and dusk skies will impress skywatchers around the world.
28 June 2012, 07:59 AM ET
From its station near Venus’ orbit, Sentinel will have a clear view of Earth’s orbit while looking away from the of the sun.
21 June 2012, 02:41 PM ET
Two planets in the newly discovered Kepler-36 system approach each other so closely, one appears three times the diameter of Earth's moon in the other's sky.
19 June 2012, 04:31 PM ET
Our home in space is a vast galaxy containing 400 billion suns, at least that many planets, and a 4-billion-solar-mass black hole at the center.
15 June 2012, 02:01 PM ET
China's three-person Shenzhou 9 crew will test techniques for docking and inhabiting the Tiangong space laboratory.
15 June 2012, 01:26 AM ET
See how China's first space station will be assembled in orbit in this SPACE.com infographic.
14 June 2012, 03:16 PM ET
In the coming years, commercial space ventures hope to send robot space probes to mine valuable material from the asteroids.
08 June 2012, 01:25 PM ET
By focusing X-rays, the NuSTAR space telescope will study black holes and other exotic objects.
08 June 2012, 07:07 AM ET
This graphic explains NASA's Mars Science Laboratory Curiosity, a large six-wheeled rover slated to launch toward Mars in 2011.
07 June 2012, 10:38 AM ET
The northern lights are more formally known as auroras, and are caused by interactions between the solar wind and the Earth's magnetic field.
05 June 2012, 06:45 AM ET
If you miss the June 2012 transit of Venus across the sun, you won't have another opportunity until the year 2117.
01 June 2012, 12:00 AM ET
See tips on how to see the June 5 Venus transit of the sun in 2012, the one until 2117, in this SPACE.com infographic.
09 May 2012, 03:06 PM ET
You should never look directly at the sun, but there are ways to safely observe an eclipse.
30 April 2012, 07:27 AM ET
Learn what makes a big full moon a true 'supermoon' in this SPACE.com infographic.