21 November 2012, 01:00 PM ET
Pluto was demoted to dwarf planet status in 2006, joining Eris, Haumea, Makemake and Ceres. All the dwarf planets are tinier than Earth's moon.
20 November 2012, 10:20 AM ET
Follow the International Space Station's (ISS) construction and development history from this infographic provided by Read about the construction of the most complex space project ever undertaken.
16 November 2012, 12:21 AM ET
Learn why famous meteor showers like the Perseids and Leonids occur every year.
09 November 2012, 04:47 PM ET
The rocket that launched men to the moon was first tested in 1967.
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 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 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 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 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 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
NASA's Mars rover Curiosity, also called the Mars Science Laboratory, is the largest rover ever sent to Mars. See how the Curiosity rover works in this infographic.
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.