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31 July 2014, 11:16 AM ET
NASA astronaut Mark Vande Hei explains how he trains for assignments in space during a long stay in the Aquarius underwater laboratory in the Florida Keys National Marine Sanctuary.
31 July 2014, 09:07 AM ET
Astrophotographer Jon Secord took this image from Pemaquid Lighthouse in Pemaquid, Maine on June 21.
31 July 2014, 07:35 AM ET
NASA's Mars Atmosphere and Volatile EvolutioN mission (MAVEN) is closing in on the Red Planet. At the same time, an interloper, comet Siding Spring, is also approaching.
30 July 2014, 07:29 PM ET
Space agency officials will reveal the science gear they've chosen for the rover, which will launch toward the Red Planet in 2020, on Thursday at 12 p.m. EDT. You can watch the announcement live here at Space.com, courtesy of NASA TV.
30 July 2014, 06:08 PM ET
A new trailer for the movie "Interstellar" hit the Internet today, revealing more about the film's largely unknown plot.
30 July 2014, 04:33 PM ET
Images taken by a European probe en route to link up with a comet, have revealed a striking feature of the target comet coming into view.
30 July 2014, 02:56 PM ET
Europe's line of space freighters is going out with a (big) bang. Named “Georges Lemaître” after the Belgian priest and astronomer who proposed what became the Big Bang theory, the European Space Agency's fifth and final Automated Transfer Vehicle has lau
30 July 2014, 01:54 PM ET
Earth and Moon in the Hadean epoch were pummeled by large impacts letting magma flow out. But, at the same time, some parts of Earth’s surface could have retained liquid water, allowing pre-biotic compounds to form; perhaps even life itself.
30 July 2014, 01:01 PM ET
Cosmic bombardment of the early Earth repeatedly covered the planet's surface with molten rock during its earliest days, but still may have left oases of water that could have supported the evolution of life, scientists say.
30 July 2014, 01:01 PM ET
Some of the oddly skewed orbits of many alien worlds may be due to the twin stars they are often found circling, a new study suggests.
30 July 2014, 01:00 PM ET
The binary system HK Tauri's ‘wildly misaligned’ discs of dust and gas may help explain why some exoplanets have eccentric orbits around their Suns. The Atacama Large Millimeter/submillimeter Array (ALMA) imaged the system. More: http://goo.gl/XMR3Hz
30 July 2014, 01:00 PM ET
Tidal forces exerted during the solar system's youth can explain most of the moon's large-scale topography, including its slight lemon shape, reports the study, which was published online today (July 30) in the journal Nature.
30 July 2014, 07:21 AM ET
A private team is priming a 36-year-old NASA spacecraft to perform new science as it travels through interplanetary space after attempts to move the probe into a position closer to Earth failed.
30 July 2014, 07:18 AM ET
While praising NASA's efforts and focus on in-space manufacturing, the U.S. National Research Council report stressed that the agency should organize its various centers to identify priority projects for use on the station.
29 July 2014, 07:55 PM ET
The European Space Agency's fifth Automated Transfer Vehicle (ATV-5) blasted off from French Guiana Tuesday evening (July 29), kicking off the final mission for this line of unmanned spacecraft, which has been resupplying the station since 2008.
29 July 2014, 07:44 PM ET
The fifth Automated Transfer Vehicle (ATV-5), named "Georges Lemaître", was launched from Kourou, French Guiana on July 29th, 2014 aboard an Ariane 5 rocket. It is the heaviest spacecraft ever launched by ESA. Full Story: http://goo.gl/vdgLGx
29 July 2014, 05:38 PM ET
A newcomer to astrophotography produced a stunning shot of the Milky Way during his first effort. See how photographer Stephen Ippolito captured this amazing view from Joshua Tree National Park in California.
29 July 2014, 05:00 PM ET
NASA wants to create a robotic gas station in space. While that might call to mind visions of interstellar starships, the unmanned depot won't actually be used to refuel rockets leading to the outer solar system or other worlds; instead, it will be design
29 July 2014, 04:35 PM ET
A company plans to place two new cameras on the outside of the International Space Station in a bid to provide more live views of Earth from space.
29 July 2014, 04:28 PM ET
The European Space Agency's ATV cargo vehicle delivers 8.3 tons of solid and liquid cargo to the International Space Station. See how the unmanned spacecraft work in this Space.com infographic.
29 July 2014, 03:00 PM ET
A cosmic lagoon glows within the clouds of the Milky Way in an incredible image.
29 July 2014, 02:40 PM ET
Don't miss this amazing collection of images taken by crewmembers aboard the International Space Station showing beautiful auroras in the skies over Earth.
29 July 2014, 02:23 PM ET
Attempts to move a 36-year-old NASA probe closer to Earth have failed, but only because the vintage spacecraft is simply out of gas, according to the team of volunteer engineers now controlling the spacecraft.
29 July 2014, 02:00 PM ET
A new space plane prototype's launch in November could pave the way toward the creation of a reusable cargo vehicle that would survive the blistering re-entry into Earth's atmosphere, according to the European Space Agency.
29 July 2014, 11:30 AM ET
If a huge solar eruption in 2012 had hit the Earth, the effects would have been so devastating that we'd still be recovering two years later, scientists working on several new studies conclude.
29 July 2014, 10:46 AM ET
The year's brightest ‘Perigee Moon’ (closest point in orbit) and the peak of the annual Perseid meteor shower arrive at the same time (August 11-13, 2014).
29 July 2014, 10:21 AM ET
On July 31st, 1964, NASA's Ranger became first U.S. probe to deliver up-close images of the surface of the moon, right up until the moment of impact. It returned 4300 photos during its 3 day mission.
29 July 2014, 09:52 AM ET
The European Space Agency's Gaia mission will produce a 3D map of the Milky Way Galaxy. It is carrying a billion-pixel camera that will map each star it can resolve more than 70 times. There may as many as 400 Billion stars in our galaxy.
29 July 2014, 07:29 AM ET
A rocket launch from South America Tuesday evening (July 29) will mark the beginning of the end for a venerable line of European cargo spacecraft.
29 July 2014, 07:17 AM ET
The icy Saturn moon Enceladus sports at least 101 geysers, which reach all the way down to the satellite's subsurface ocean, new research suggests.
28 July 2014, 08:00 PM ET
The three spacecraft — two of which are fully operational and one of which is an experimental satellite — blasted off today (July 28) from Florida's Cape Canaveral Air Force Station, riding atop a United Launch Alliance Delta 4 rocket.
28 July 2014, 05:48 PM ET
The rover landed on the Red Planet in 2004 and has since driven a record 25.01 miles (40.02 km). The record was previously held by the Russian Lunokhod 2 which roved the lunar surface for 24.2 miles (39 km) in 1973. Full Story: http://goo.gl/C59h6r