Science & Astronomy Archive
30 March 2015, 07:00 AM ET
New Horizons becomes the first probe to explore Pluto in mid-2015.
30 March 2015, 07:00 AM ET
Scientists are considering further targets for NASA's New Horizons spacecraft to visit following its Pluto encounter this summer, should funding be provided.
30 March 2015, 06:50 AM ET
Here's a quick look at the evolution of NASA's Asteroid Redirect Mission (ARM), which originally envisioned bagging up an entire space rock but will now pluck a boulder from a large asteroid.
30 March 2015, 06:40 AM ET
If an alien planet in a distant solar system were home to microscopic life-forms, how might scientists see them and even decipher their identity? A new catalog of Earth-based life forms may provide a first step.
29 March 2015, 10:00 AM ET
Last week, NASA's Messenger spacecraft executed the first of a series of engine burns designed to lift the probe's orbit slightly and delay its inevitable impact into Mercury's surface by up to a month.
29 March 2015, 09:51 AM ET
Two spaceflyers blasted off on the first-ever yearlong mission to the International Space Station and NASA announced its plan to haul a boulder from a near-Earth asteroid to lunar orbit. Here's a look at Space.com's top stories of the week.
28 March 2015, 01:34 PM ET
From the first (contraband) corned beef sandwich in space to astronomy's oldest known 'Nova,' don't miss these amazing space images of the week for March 29, 2015.
27 March 2015, 05:00 PM ET
Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
27 March 2015, 04:20 PM ET
New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron but stayed gravitationally stuck on more massive Earth.
27 March 2015, 08:00 AM ET
Despite a forward-looking and overall healthy NASA planetary science program budget, two on-duty spacecraft are now on the chopping block.
27 March 2015, 03:28 AM ET
For moon shots, a rural sky is not always necessary.
27 March 2015, 03:14 AM ET
How super is a supermoon? Here's a minimoon for context.
26 March 2015, 06:00 PM ET
The first spacecraft to make a soft-landing on a comet is still quiet on the dusty cosmic body, despite being hailed by another probe orbiting the lander.
26 March 2015, 04:17 PM ET
NASA and Russia are launching a joint one year mission to the International Space Station. NASA's Scott Kelly and cosmonaut Mikhail Kornienko will blast off to the orbiting outpost on March 27, 2015 EDT.
26 March 2015, 02:02 PM ET
Dark matter living in galaxy clusters doesn't splatter when the galaxies collide, according to new research. The finding suggests dark matter particles, whatever they are, are not part of a "dark sector" that mirrors our own universe.
26 March 2015, 02:00 PM ET
A small cloud of rocket fuel glowed faintly in the night sky above the Atlantic Ocean on the night of March 12, following a launch from Cape Canaveral Air Force Station, Florida. Skywatcher Scott Gauer photographed the glowing cloud from Danville, Penn.
26 March 2015, 02:00 PM ET
The iron heart of Earth's moon has been measured more precisely than ever before. In a new study, scientists used X-rays to study the type of iron likely presence in our lunar companion's core.
26 March 2015, 10:11 AM ET
A NASA spacecraft is expected make its historic arrival in orbit around the dwarf planet Ceres, marking the first time a human-made probe has visited the cosmic body in history.
26 March 2015, 08:47 AM ET
Known to many as "G2," the unidentified object making a loop around the monster black hole at the center of our galaxy could be a cloud of gas, or it could be a star, depending on who you ask.
26 March 2015, 08:00 AM ET
An astronaut and a cosmonaut spend an entire year aboard the ISS to provide data on the health implications of space travel.
26 March 2015, 07:00 AM ET
NASA intends to pluck a boulder off a near-Earth asteroid and haul it into orbit around the moon. Agency officials haven't decided upon the target asteroid yet, but the leading contender at the moment is the 1,300-foot-wide 2008 EV5.
25 March 2015, 02:50 PM ET
The search for alien life doesn’t end within the boundaries of our solar system. Scientists are now search for moons orbiting alien planets that might play host to extraterrestrial life.
25 March 2015, 02:50 PM ET
A recent episode of a fantastic video series called "Shelf Life," produced by the American Museum of Natural history, explores how an archive of astronomical images can help astrophysicists look back in time.
25 March 2015, 02:21 PM ET
What astronomers thought was a cloud of gas being stretched as it whipped past our galaxy's central black hole now turns out to look much more like a young, hot compact star.
25 March 2015, 02:02 PM ET
The 15-minute uncertainty of how fast Saturn spins may have been put to rest, using mathematics.
25 March 2015, 02:01 PM ET
Giant winds from black holes can blast gas through galaxies at extraordinary speeds, pulling the plug on star formation, researchers say.
25 March 2015, 01:00 PM ET
Total solar eclipses are one of nature’s grandest events. What is a total solar eclipse? How do they work? And when is the next one? We explain.
25 March 2015, 08:00 AM ET
NASA's successor to the Hubble Space Telescope is on schedule and budget for now, space agency officials told members of Congress today (March 24).
25 March 2015, 07:58 AM ET
Science experiments conducted on the International Space Station during the orbiting outpost's first yearlong mission could help open the door to deep space for NASA.
24 March 2015, 06:01 PM ET
The golf-cart-size Opportunity rover has now traveled 26.219 miles (42.195 kilometers) — the distance of a marathon race — since touching down on the Red Planet in January 2004, NASA officials announced today (March 24).
24 March 2015, 04:28 PM ET
NASA's Kepler mission team will receive the Smithsonian National Air and Space Museum's 2015 Trophy for Current Achievement. Tom Krimigis of the Johns Hopkins University's Applied Physics Lab, will get the museum's Lifetime Achievement award.
24 March 2015, 02:32 PM ET
NASA's New Horizons' principal investigator Dr. Alan Stern talks to Space.com about the importance of the mission to the "wild west" of our solar system, a place where no other probe has been.