09 October 2015, 02:19 PM ET
Growing food on Mars would require tweaking the thin soil and optimizing plants for microgravity and maximum nutritional density, one expert says.
08 October 2015, 05:51 PM ET
A new photo beamed home by NASA's New Horizons spacecraft, which performed history's first flyby of Pluto this past July, reveals that the dwarf planet's skies have an azure tinge.
08 October 2015, 05:36 PM ET
A series of freshwater lakes within Mars' 96-mile-wide Gale Crater likely persisted for hundreds or thousands of years at a time, and perhaps even longer, according to the new study, which is based on observations made by NASA's Curiosity rover.
08 October 2015, 12:05 PM ET
Our universe is actually really simple, it's just our cosmological theories that are getting needlessly complex, argues one of the world's leading theoretical physicists.
03 October 2015, 12:00 AM ET
NASA has been helping promote the new film "The Martian," which hits theaters across the United States today (Oct. 1), as a way to publicize its own plans to send astronauts to the Red Planet in the 2030s.
02 October 2015, 11:38 PM ET
The new maps from NASA's Dawn mission highlight the compositional and topographic differences across Ceres, the largest object in the main asteroid belt between Mars and Jupiter.
30 September 2015, 06:00 AM ET
How, exactly, were scientists able to prove that briny water can be found on Mars?
30 September 2015, 05:57 AM ET
The dusty-red sphere now called Mars has fascinated stargazers since the dawn of humanity, but Earthlings' view of the planet has changed drastically over the years.
29 September 2015, 11:38 AM ET
Scientists recently announced they had discovered flowing water on Mars, boosting the odds of extraterrestrial life, but why is water so essential to life in the first place?
28 September 2015, 11:53 AM ET
The enigmatic dark streaks called recurring slope lineae (RSL) that appear seasonally on steep, relatively warm Martian slopes are probably caused by salty liquid water, researchers said.
28 September 2015, 11:30 AM ET
Scientists say they've found evidence of flowing water on Mars. Salty brines found in dark streaks that show up and disappear throughout the Martian year are evidence that briny water is flowing on the Red Planet, scientists say.
28 September 2015, 08:03 AM ET
On Sunday evening, a moon that appeared abnormally large and bright in Earth's skies dove into the planet's shadow, turning a gorgeous reddish-gold in the process. It was the first supermoon total lunar eclipse since 1982, and the last until 2033.
27 September 2015, 01:00 PM ET
Tonight, an oversized ruby-colored sphere will rise in the sky as a total lunar eclipse turns the normally pallid moon scarlet.
27 September 2015, 08:21 AM ET
If you pick one night this year to go out and look up, make it tonight. If skies are clear, expect a delightful treat as a total lunar eclipse occurs in rare circumstances that will render the moon slightly bigger than normal, a so-called supermoon.
26 September 2015, 10:59 AM ET
From sky bears duking it out with the moon to coital relationships between celestial bodies, people have been making up cool stories to explain lunar eclipses for a very long time.
25 September 2015, 12:51 PM ET
This Sunday's supermoon eclipse doesn't mark the end of the world as we know it.
25 September 2015, 07:11 AM ET
The majority of people believe that intelligent aliens are out there, and many want to reach out. The survey found that men are more likely to believe in intelligent aliens than are women, and also more likely to say humanity should reach out.
25 September 2015, 06:56 AM ET
A rare supermoon lunar eclipse will grace the night sky on Sunday (Sept. 27), and if you live in the Western Hemisphere, you could have spectacular views of this celestial treat.
24 September 2015, 03:51 PM ET
A poll recently showed that greater than one in two persons polled believes that intelligent extraterrestrial life lurks somewhere in the cosmos.
24 September 2015, 12:43 PM ET
A steady hand and a long lens capture a jet and its contrails cutting across a beautiful blue channel by Great Exuma Island in the Bahamas.
24 September 2015, 12:03 PM ET
Here's a skywatching guide for the Sept. 27 "supermoon" total lunar eclipse — the first such event since 1982, and the last until 2033.
23 September 2015, 09:13 AM ET
Simulations suggest that Saturn's north polar hexagon is shaped by shallow jets at the cloud level. Winds below the cloud level apparently help keep the shape of the hexagon sharp and control the rate at which the hexagon drifts.
21 September 2015, 04:56 PM ET
With a week until the huge supermoon lunar eclipse, it's time to dust off your small telescopes and binoculars, track down an observatory event or webcast, or draft your invitations for a moon-cake party.
18 September 2015, 02:16 PM ET
The photo, which New Horizons took during its epic July 14 flyby of Pluto, captures a sunset view. Towering ice mountains cast long shadows, and more than a dozen layers of the dwarf planet's wispy atmosphere are clearly visible.
17 September 2015, 02:00 PM ET
Lead actor Matt Damon describes how Ridley Scott's film – and Andy Weir's book – can perk students’ curiosity, in this conversation with Space.com's @DavidSkyBrody at NASA's Jet Propulsion Lab.
17 September 2015, 12:04 PM ET
A slight wobble in the orbit of Saturn's moon Enceladus can only be explained by a global ocean beneath its crust.
16 September 2015, 11:10 AM ET
The Defense Advanced Research Projects Agency (DARPA) is developing a highly capable robotic arm that could make a potentially transformative space "transportation hub" possible in the relatively near future.
14 September 2015, 07:39 AM ET
Maybe you've seen a double rainbow, but what about a double meteor strike?
10 September 2015, 11:46 AM ET
A giant slab of ice as big as California and Texas put together lurks just beneath the surface of Mars between its equator and north pole, researchers say. This ice may be the result of snowfall tens of millions of years ago on the Red Planet.
10 September 2015, 11:15 AM ET
NASA's New Horizons spacecraft has begun beaming home tens of gigabits of data gathered during its historic July 14 flyby of Pluto. The entire flyby data set should be on the ground in about 12 months.
08 September 2015, 04:15 PM ET
On Sept. 7th, 2015, European astronaut Andreas Mogensen – orbiting 240+ miles up and flying at 17,000+ mph – placed a peg in a hole on Earth; a demonstration of teleoperation using a force-feedback controlled machine system built by ESA.
03 September 2015, 11:49 AM ET
NASA is teaming up with California-based company Arx Pax, which has developed a real-life hoverboard using a technology called Magnetic Field Architecture. The goas is to find a way to manipulate tiny satellites called cubesats.