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26 May 2015, 05:02 PM ET
The Europa probe will carry supersharp cameras, a heat detector, ice-penetrating radar and a variety of other gear that will help researchers gauge the Jupiter moon's ability to support life as we know it.
26 May 2015, 04:30 PM ET
Science experiments done in microgravity or related to space flight can be found in a new scientific journal dedicated to these areas of research.
26 May 2015, 11:42 AM ET
Astronomers studying the globular star clusters orbiting the giant elliptical galaxy Centaurus A (NGC 5128) have stumbled upon a fascinating discovery — the clusters are too massive.
26 May 2015, 11:23 AM ET
The Permanent Multipurpose Module (PMM) will be moved to a nearby port to create a spare docking port for United States commercial crew transport by SpaceX, Boeing and possibly others in the future.
26 May 2015, 10:28 AM ET
Google has paid tribute to Sally Ride, the United States' first woman in space, with animated Doodles on its site. The whimsical scenes are timed to celebrate what would have been the late astronaut's 64th birthday.
26 May 2015, 10:06 AM ET
The Air Force spacecraft, known for its secretive United States national security missions, is built by Boeing. The company's director of experimental systems, Ken Torok, talks about what makes it unique.
26 May 2015, 07:12 AM ET
The House of Representatives passed a bill with a number of commercial space policy provisions May 21, despite objections from some Democratic members.
26 May 2015, 07:05 AM ET
Green rust could help living organisms on Mars extract energy from their environment. Scientists are working on ways of identifying green rust on the surface of the Red Planet.
25 May 2015, 09:00 AM ET
A scientist has raised questions about the latest detection of methane on Mars, suggesting that NASA's rover could be responsible for the mysterious burp. Highly unlikely, but not impossible, says the Curiosity team.
24 May 2015, 09:01 AM ET
The U.S. Air Force's X-37B space plane launched on another mystery mission, Russia's Proton rocket failed during a satellite launch and astronomers found the most luminous galaxy in the universe. Here's a look at Space.com's top stories of the week.
23 May 2015, 12:28 PM ET
What if the universe is not just matter and energy, but bits of information?
23 May 2015, 08:44 AM ET
If your local weather is clear tonight (May 23), check out the western sky around mid-twilight – about an hour after sunset. There, about half way up from the south-southwest horizon to the overhead point, you’ll see an eye-catching sight for the Memorial
23 May 2015, 07:00 AM ET
From the launch of the U.S. Air Force's X-37B space plane to new views of the odd bright spots on the dwarf planet Ceres, don't miss these amazing space images of the week for May 23, 2015.
23 May 2015, 07:00 AM ET
The Curiosity team mapped out a new route to some interesting rocks using images captured by Curiosity and NASA's Mars Reconnaissance Orbiter, which has been circling the Red Planet since 2006.
22 May 2015, 01:54 PM ET
The world of tomorrow is a pretty wonderful place … at least that's the sentiment of the makers of Disney's new epic: 'Tomorrowland.'
22 May 2015, 01:20 PM ET
The mysterious white spots on the surface of Ceres are definitely reflecting sunlight, scientists announced. You can submit your guess for what the spots might be in a poll on the Dawn mission website.
22 May 2015, 10:34 AM ET
A manned mission to Pluto may be far out, but it's not impossible.
22 May 2015, 07:17 AM ET
In the new Disney film 'Tomorrowland,' now in theaters, NASA provides the launch pad, literally and figuratively, for the movie's plot to unfold. 'To many of us on the film, NASA is close to our hearts,' said director Brad Bird.
22 May 2015, 07:01 AM ET
Observations by NASA's Hubble Space Telescope have revealed a disk of gas nearly 3 trillion miles wide surrounding Nasty 1, suggesting that the star's strange appearance and behavior may stem from an ongoing act of cosmic cannibalism.
22 May 2015, 07:01 AM ET
A newfound galaxy 12.5 billion light-years from Earth is the most luminous one known in the universe, blazing more brightly than 300 trillion suns. The engine behind the galaxy's brilliance may be a supermassive black hole, researchers said.
22 May 2015, 07:00 AM ET
Cubesats have pushed beyond the sphere of academia, becoming major tools for governments conducting a variety of missions and for companies earning revenues from space.
22 May 2015, 07:00 AM ET
On May 4, NASA's Lunar Reconnaissance Orbiter performed two engine burns, changing its orbit to one that gets within 12 miles (20 kilometers) of the moon's south pole and 103 miles (165 km) of the north pole.
21 May 2015, 01:45 PM ET
Bright red veins lace across the sky and feed into enormous crimson clouds that look like living hearts, in these breathtaking views of the Gamma Cygni nebula and surrounding region.
21 May 2015, 01:30 PM ET
The Medusa Nebula's most detailed close-up ever shows a dying star's fate, similar to what will befall our sun in a few million years. The colorful display of gas some 1,500 light-years from Earth is happening because a star in the center of the nebula is
21 May 2015, 01:00 PM ET
SpaceX's unmanned Dragon spacecraft splashed down today in the Pacific Ocean off the coast of Baja California at 12:42 p.m. EDT (1642 GMT), about 5 1/2 hours after departing the orbiting lab.
21 May 2015, 09:19 AM ET
In situations where sunlight is not available, like shadowed craters, its been a challenge to supply power to spacecrafts, landers and rovers. The space agency is looking into nuclear systems as an alternative.
21 May 2015, 07:15 AM ET
Type Ia supernovas have long been used to measure the expansion of the universe. New research suggests that at least some of these explosions occur in systems with a white dwarf and a full-fledged companion star.
21 May 2015, 07:00 AM ET
On Thursday evening (May 21) as darkness falls, the two brightest objects of the night will be calling attention to themselves. The crescent moon will be accompanied by the brightest planet, the dazzling so-called "evening star": the planet Venus.
20 May 2015, 05:50 PM ET
A group of dedicated "Star Trek" fans want to make a new movie, featuring a character from "The "Original Series" who was captain of the Enterprise before James T. Kirk. And they plan to have experienced "Star Trek" actors taking part.
20 May 2015, 05:45 PM ET
Alien planets likely experience "space weather," just like Earth's solar system. A team of scientists is trying to determine if such weather could make other planets inhospitable to life.
20 May 2015, 05:40 PM ET
The striking arms of the Whirlpool galaxy can be seen in stunning detail in this astrophotographer image by Jaspal Chadha.
20 May 2015, 04:23 PM ET
A Swedish university student has created a design for an "International Flag of Planet Earth" that could be planted on planets during future human exploration.