06 March 2014, 06:00 PM ET
A far-flung NASA space probe flying around Saturn zipped past the ringed planet's biggest moon for the 100th time. The Cassini spacecraft made its closest approach to the hazy moon Titan on Thursday.
06 March 2014, 04:21 PM ET
The 25-foot-wide (8 meters) asteroid 2014 EC came within 38,300 miles (61,600 kilometers) of our planet at 4:21 p.m. ET today, NASA officials said. For comparison, the moon orbits Earth at an average distance of 239,000 miles (385,000 km).
06 March 2014, 02:02 PM ET
A huge meteorite impact on Mars was so powerful that it blasted a bunch of Red Planet rocks in Earth's direction five million years ago. The cosmic crash is the source of all "shergottite" Martian meteorites found on Earth, researchers say.
06 March 2014, 01:35 PM ET
The 2014 sequel to the classic science television show comes to Fox Network. See photos and images from the new incarnation 'Cosmos: A Space-time Odyssey.'
06 March 2014, 01:20 PM ET
Several of the asteroids that have been spotted passing with the orbits of the moon and even Earth's communications satellites.
06 March 2014, 12:42 PM ET
As spiral galaxy ESO 137-001 zooms through the super hot gas of the Norma cluster, much of it's own gas is pulled away in a process called 'ram pressure stripping. The threads of gas left behind give birth to bright young stars, seen here in blue.
06 March 2014, 11:07 AM ET
The spiral galaxy ESO 137-001 looks like a dandelion caught in a breeze in this stunning space wallpaper from Hubble Space Telescope.
06 March 2014, 10:22 AM ET
A space rock in the asteroid belt, named P/2013 R3, has fragmented into as many as 10 pieces. The four largest fragments are larger that 2 football fields each. Astronomers are investigation the cause with the help of the Hubble Space Telescope.
06 March 2014, 10:18 AM ET
Photos of the NASA-funded sounding rocket mission including some stunning shots of the launch—straight into an aurora over Venetie, Alaska.
06 March 2014, 10:02 AM ET
Three of NASA's top meteor and fireball experts will answer questions from the public about the science behind space rocks from the sky today in a Reddit "Ask Me Anything" forum today live at 2 p.m. EST (1900 GMT).
06 March 2014, 08:35 AM ET
Do you remember the first time you saw 'Cosmos'? Or the first time you heard Carl Sagan's voice tell you that you, too, were made of star stuff? How did Carl Sagan inspire you?
06 March 2014, 07:30 AM ET
The space agency's Cassini probe snapped the photo in October, when it was 1.6 million miles from Saturn and 38 degrees below the ring plane. The planet's battered "Death Star" moon Mimas is visible as a pinprick of light at the bottom right.
06 March 2014, 07:00 AM ET
The 33-foot-wide (10 meters) near-Earth asteroid 2014 EC will come within 34,550 miles (55,600 kilometers) of Earth's surface this afternoon (March 6). You can watch the flyby here at Space.com beginning at 2:00 p.m. ET.
05 March 2014, 06:43 PM ET
A space rock named 2014 EC (discovered March 5th, 2014, estimated 13-45 feet-wide) will give Earth a close shave on March 6th. This is the second asteroid that has flown between the Earth and moon in consecutive days.
05 March 2014, 05:00 PM ET
See amazing photos of Saturn's glorious rings.
05 March 2014, 04:07 PM ET
Asteroid 163 Erigone will occult the star Regulus on March 20th, 2014 at 2:06am ET and can be seen in part of the Northeast United States.
05 March 2014, 03:20 PM ET
Astronomers have calculated how fast a distant supermassive black hole rotates, clocking it at nearly half the speed of light. A fortuitious lineup of cosmic objects allowed scientists to measure the mind-boggling spin rate.
05 March 2014, 01:44 PM ET
Asteroid 2014 DX110 was captured by Gianluca Masi of the Virtual Telescope Project (virtualtelescope.eu). Its closest approach is ~217,000 miles away from Earth on March 5th, 2014. (looped)
05 March 2014, 01:04 PM ET
NASA's Mars MAVEN mission (arriving 21 September 2014) will detect and measure how the solar wind interacts with the Red Planet’s atmosphere, giving clues to where its water went and why.
05 March 2014, 12:26 PM ET
Spinning 390 times a second, the "black widow" pulsar PSR J1311−3430 periodically swings its radio (green) and gamma-ray (magenta) beams past Earth in this amazing space wallpaper.
05 March 2014, 11:00 AM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions. See Space.com complete coverage of NASA's 2015 budget request here:
05 March 2014, 10:27 AM ET
A newfound asteroid will buzz close by Earth today (March 4), flying safely between our planet and the orbit of the moon, and you can follow the space rock encounter live online. The asteroid 2014 DX110 will zip by Earth at 4 p.m. EST (2100 GMT) today.
05 March 2014, 07:00 AM ET
The White House's 2015 federal budget request, which was released today, slashes funding for the space agency's Stratospheric Observatory for Infrared Astronomy, a modified Boeing 747 aircraft that scans the heavens using an 8.2-foot-wide telescope.
05 March 2014, 06:00 AM ET
Astronomers are drawing inspiration from a new MUSE: The Multi Unit Spectroscopic Explorer on ESO’s Very Large Telescope in Chile combines cameras and spectrographs to build 3D space time maps.
05 March 2014, 01:00 AM ET
The White House's 2015 federal budget request, which was released Tuesday, allocates $15 million to help develop a mission to Europa, which harbors a potentially life-supporting ocean of liquid water beneath its icy shell.
04 March 2014, 06:07 PM ET
NASA unveiled its 2015 budget request on Tuesday (March 4), a $17.5 billion spending plan that would maintain the space agency's major ongoing missions, while supporting ambitious new science missions. See reactions to the new NASA budget.
04 March 2014, 04:26 PM ET
LiftPort Group of Seattle seems to think so. This private company proposes launching rockets from Earth to a 'Lagrange Point PicoGravity Lab' where cargo can be transferred to and from the lunar surface.
04 March 2014, 03:05 PM ET
NASA unveiled its 2015 budget request today (March 4), a request that seeks $17.5 billion for the agency. See NASA chief Charles Bolden's view of the agency's 2015 budget plan.
04 March 2014, 02:57 PM ET
A look at NASA’s flying telescope SOFIA as well as some fascinating images from the observatory.
04 March 2014, 02:36 PM ET
This space wallpaper is an illustration depicting the amount of space junk currently orbiting Earth.
04 March 2014, 01:12 PM ET
The NASA Administrator, former Shuttle Cdr. Charles F. Bolden, briefs taxpayers on NASA's goals including commercial partnerships, the Orion crew capsule and a possible heavy lift launcher.
04 March 2014, 01:08 PM ET
NASA's 2015 budget would remain essentially flat at $17.5 billion under a White House spending proposal unveiled today (March 4). It maintains the agency's biggest space programs, lays groundwork for major new astrophysics and planetary science.
04 March 2014, 12:50 PM ET
See images of NASA’s space exploration goals for 2015.
04 March 2014, 12:46 PM ET
The proposed 2015 federal budget released by the White House today (March 4) allocates $17.5 billion to NASA, a $200 million drop from the space agency's 2014 budget request.
04 March 2014, 12:08 PM ET
A human would be able to take flight off the surface of Saturn's moon Titan by running in a wingsuit — but only if they were as fast as sprinter Usain Bolt, a group of physics students say.
04 March 2014, 11:04 AM ET
The late astronomer Carl Sagan has inspired scientists, astronauts and the world with his work popularizing science and astronomy. See the long-lasting legacy of Sagan, an astronomy educator for the ages, in this Space.com gallery.