22 May 2014, 03:44 PM ET
A new meteor shower from the Comet 209P/LINEAR could be a spectacular display tomorrow night (May 23). NASA's Bill Cooke discusses the rare Camelopardalid meteor shower on Space.com.
22 May 2014, 03:35 PM ET
The U.S. Department of Defense's Missile Defense Agency conducted a test of Aegis Ashore Weapon System with the launch of the SM-3 Block IB guided missile from Kauai, Hawaii.
22 May 2014, 03:10 PM ET
A fresh pockmark half the length of a football field suddenly appeared on Mars in March 2012, pictures from a NASA satellite show. It's the biggest new impact crater scientists have confirmed on any planet by using before-and-after images.
22 May 2014, 02:28 PM ET
The crew of the U.S.S. Kearsarge spell out the words "Mercury 9" on the deck.
22 May 2014, 12:04 PM ET
Space.com shadowed a group of students from the University of California, San Diego who were selected by NASA to test an experiment onboard a zero-gravity flight.
22 May 2014, 11:34 AM ET
The private spaceflight company SpaceX is building a giant rocket called the Falcon Heavy. See images of the planned Falcon Heavy heavy-lift booster in this Space.com gallery.
22 May 2014, 11:18 AM ET
NASA's Interface Region Imaging Spectrograph (IRIS) 'corona-cam' captured close-ups of plasma falling and exploding away from the surface.
22 May 2014, 11:17 AM ET
A 36-year-old space probe that NASA once thought might be returned from space to be put into the Smithsonian may instead soon resume its original mission thanks a private group's attempt to reawaken the satellite.
22 May 2014, 10:59 AM ET
See photos of the Aegis Ashore Weapon System launch test, the first to launch an SM-3 missile from land, on May 20, 2014. The U.S. Navy performed the test from Kawaii, Hawaii in a flight overseeen by the U.S. Missile Defense Agency.
22 May 2014, 10:30 AM ET
These shots of the Martian surface from orbit show our planetary neighbor as never before.
22 May 2014, 09:07 AM ET
See launch photos for the May 22, 2014 launch of an Atlas 5 rocket carrying the classified NROL-33 satellite in this Space.com gallery. The United Launch Alliance launched the mission for the U.S. National Reconnaissance Office.
22 May 2014, 07:34 AM ET
An unmanned Atlas 5 rocket will launch a classified spy satellite payload for the U.S. National Reconnaissance Office at 9:05 a.m. EDT (1405 GMT) from Cape Canaveral Air Force Station.
22 May 2014, 07:00 AM ET
NASA is enlisting amateur astronomers to hunt for killer space rocks. The space agency announced Wednesday (May 21) that it has signed a deal with the online observatory Slooh to get citizen scientists to track asteroids.
22 May 2014, 12:26 AM ET
Astronomers using the NASA/ESA Hubble Space Telescope have captured the images in this amazing space wallpaper showing the dancing auroral lights at Saturn’s north pole.
21 May 2014, 11:48 PM ET
Material blasted off Mars from meteor impacts may have scarred the surface of Phobos, one of the Red Planet's two tiny moons, a new study suggests.
21 May 2014, 07:40 PM ET
"Star Wars" fans who donate to a newly launched charity initiative have a chance to win a walk-on role in the new film, director J.J. Abrams announced in a new video that also gave a sneak peak at one of the upcoming movie's creatures.
21 May 2014, 06:08 PM ET
An astronaut aboard the International Space Station floats before a bank of windows, holding open a children's book and pointing at a drawing of the orbiting outpost. The scene marks the start of the first “Story Time From Space."
21 May 2014, 05:59 PM ET
The possible new meteor shower in May has a bit of a tongue-twisting name. Here are some possibilities that NASA has heard.
21 May 2014, 05:01 PM ET
Earth will pass through a trail of comet debris on Friday night (May 23), perhaps setting up a meteor shower of epic proportions. But experts aren't sure just what skywatchers will see.
21 May 2014, 03:49 PM ET
Should recent geopolitical events ultimately prompt the U.S. government to build a domestic alternative to the Russian-built RD-180 engine that powers one of its workhorse rockets, it probably makes more sense to develop one from scratch.
21 May 2014, 02:37 PM ET
The Satellite Sentinel Project — which has been using spacecraft imagery to monitor human rights abuses in Sudan and South Sudan since December 2010 — will also now conduct investigations, following the money trails that fund mass atrocities.
21 May 2014, 01:26 PM ET
Some stars that give birth to Earth-like rocky planets only to later devour those same daughter worlds, and now scientists say they have a way to find the stellar cannibals.
21 May 2014, 01:19 PM ET
The most massive and luminous stars were long suspected to die in explosive deaths, and astronomers now have the most direct evidence yet that these cosmic behemoths go out with a bang.
21 May 2014, 01:09 PM ET
An astronaut examines the protective material on his Mercury capsule.
21 May 2014, 01:00 PM ET
See some of the best photos of supernovas — the explosive deaths of stars.
21 May 2014, 11:44 AM ET
The Special Purpose Dexterous Manipulator (SPDM) aka Dextre, will replace a faulty camera near the elbow of its attached robotic arm. This will be the first self-repair conducted by the the robot.
21 May 2014, 11:10 AM ET
Astronomers have several ways to count stars, but getting a definitive answer to how many there are in a galaxy is "surprisingly difficult."
21 May 2014, 09:01 AM ET
The image, a compilation of exposures taken by NASA's Opportunity rover on April 18, provides a great look at the 14-mile-wide (22 kilometers) Endeavour Crater, which Opportunity has been exploring since August 2011.
21 May 2014, 09:00 AM ET
The director, on the set of the upcoming sequel in Abu Dhabi, makes the announcement as part of UNICEF initiative called "Force For Change". Find out more at www.omaze.com/starwars.
21 May 2014, 08:33 AM ET
Space.com shadowed a group of students from the University of California, San Diego who were selected by NASA to test an experiment on board a zero-gravity flight.
21 May 2014, 07:01 AM ET
NASA's InSight Mars lander, which is scheduled to launch toward the Red Planet in 2016, passed a key design review Friday (May 16), clearing the way for construction of the spacecraft to begin.
21 May 2014, 06:12 AM ET
Spirit and Opportunity, the Mars rovers, have outlived and outlasted any spacecraft on the surface of the red planet. Take a look at some of their latest Mars photos.