08 December 2010, 02:10 PM ET
The only total solar eclipse of 2010 occurred on July 11 over a remote region of the southern Pacific Ocean. See stunning photos of the spectacular celestial event.
23 November 2010, 03:24 PM ET
Two Mars craters photographed by NASA's Opportunity rover have received new names to honor the historic Apollo 12 spaceships.
23 November 2010, 02:35 PM ET
The 500th alien planet appears to have been discovered, extrasolar planet trackers say. Less than 20 years after confirming the first exoplanet, astronomers have bagged No. 500.
22 November 2010, 02:51 PM ET
In "Skyline," a weird assortment of slimy extraterrestrials from an unspecified world plummet into downtown Los Angeles.
18 November 2010, 02:30 PM ET
An active comet visited by a NASA spacecraft this month is spewing jets of dry ice into space, scientists have found.
17 November 2010, 09:43 AM ET
Two American astronauts and a Russian cosmonaut living on the International Space Station will have to return to Earth a few days early to avoid interfering with an international security summit being held near their landing site in Central Asia.
16 November 2010, 04:15 PM ET
Saturn is a changeable world that pumps out surprisingly variable amounts of heat from year to year and season to season, a new study has found.
16 November 2010, 04:04 PM ET
The first ever samples of an asteroid have been confirmed inside the return capsule of Japan's Hayabusa spacecraft.
16 November 2010, 03:30 PM ET
Astronomers have found a new cache of double-star systems where two small, dense stars are merging and might soon explode in supernovas.
16 November 2010, 02:37 PM ET
The moon will appear with the Pleiades, the brightest star cluster in the sky, on Nov. 21.
16 November 2010, 10:02 AM ET
When an impressive contrail was spotted off the California coast last week, it sparked widespread reports of a mystery missile launch in the area – a theory the Pentagon squashed after initial investigations. But, the odd contrail fooled more than the pub
16 November 2010, 09:56 AM ET
Astronomers hunting for Earth-like alien worlds could improve their odds by zeroing in on planets that look blue from afar, just like Earth, a new study suggests.
15 November 2010, 05:01 PM ET
Pluto was originally considered the ninth planet in Earth’s solar system, but was recently classified as a dwarf planet. Pluto’s orbit takes it through the Kuiper Belt.
15 November 2010, 04:56 PM ET
Uranus, seventh planet from the sun, is the third largest planet and is a gas giant similar to Jupiter, Saturn and Neptune with the coldest atmosphere in the solar system.
15 November 2010, 04:28 PM ET
The planet Neptune, eighth planet from the Sun in Earth’s solar system, is the fourth largest planet in diameter and third largest in mass. Neptune was named after the Roman God of the seas.
15 November 2010, 04:21 PM ET
Saturn, the sixth planet from the Sun, was named after the Roman God Saturn. The planet Saturn is a gas giant and one of the Jovian planets.
15 November 2010, 02:25 PM ET
A massive spacecraft blasted off Sunday from the plains of Kazakhstan on a Proton to beam broadband messages to smart phones from more than 22,000 miles in space.
15 November 2010, 01:10 PM ET
The sun is at the heart of our solar system and is the largest object – about 109 times the diameter of Earth. SPACE.com offers an overview of the sun, including its formation, evolution and orbit.
15 November 2010, 01:06 PM ET
Stars are giant, luminous spheres of plasma. SPACE.com offers an overview of stars, including their formation, observation, classification and naming designations.
15 November 2010, 12:59 PM ET
The sun is at the heart of our solar system and 8 planets orbit the sun. Also part of the solar system is the asteroid belt, trans-neptunian region and dwarf planets. Learn more at SPACE.com.
15 November 2010, 12:52 PM ET
Scientists say a giant impact knocked off the raw ingredients for the moon off the primitive molten Earth and into orbit. SPACE.com has an overview of Earth’s Moon, including its composition and orbit.
15 November 2010, 12:49 PM ET
Earth is the only planet known to support life. Learn about Earth science facts and the planet’s interior composition, surface and atmosphere.
15 November 2010, 12:46 PM ET
Comets are icy bodies that release gas or dust. SPACE.com offers an overview of comets including physical characteristics, comet formation, collisions and more.
15 November 2010, 10:33 AM ET
NASA engineers have found another crack – the fourth so far – in the metal skin of the external fuel tank attached to the space shuttle Discovery.
12 November 2010, 10:38 AM ET
As technicians continued repair work on the space shuttle Discovery, a third crack was found on the aluminum body of the orbiter's external fuel tank, the latest in a series of delays and glitches that prevented the workhorse shuttle from launching on its