28 November 2014, 07:24 AM ET
These amazing images show the planet Mars passing below two nebulas. Astrophotographer Derek Demeter took the images from the Stardust Ranch in Okeechobee, Florida.
28 November 2014, 07:22 AM ET
Astronomers are searching for gravitational waves possibly emitted by "strange stars," superdense objects made of exotic matter.
27 November 2014, 07:12 AM ET
Titan's "prebiotic" environment consists of molecules that could be a precursor to life.
27 November 2014, 07:11 AM ET
To a casual stargazer, most stars look the same. Some may be brighter, others dimmer, but for the most part, they are all variations on the same theme. All stars are so far away that we see them only as pinpoints of light.
26 November 2014, 03:00 PM ET
NASA is webcasting a number of events this week leading up to Thursday's (Dec. 4) historic first test flight of the agency's Orion space capsule. Watch live here, beginning Tuesday (Dec. 2) at 12 p.m. EST (1700 GMT).
26 November 2014, 03:00 PM ET
NOAA satellites captured the early formation of the Thanksgiving nor'easter that could wreak havoc on holiday travelers.
26 November 2014, 02:12 PM ET
Oberwerk's Ultra 15x70 are a wonderful balance of size, weight and optical performance. Space.com's Editors chose them over all others, except one. Medium binoculars can be mounted or handheld if braced.
26 November 2014, 02:06 PM ET
Celestron's Cometron 7 x 50 offers remarkable views and excellent value for a low price. Space.com's editors chose them over all others, except one. These small binoculars are easy to carry and superb for kids.
26 November 2014, 02:01 PM ET
Could life survive a trip on a comet, or the tip of a rocket? New evidence shows that DNA samples remain functional after a trip on the outside of a low-orbit rocket.
26 November 2014, 01:01 PM ET
Researchers have measured the distance to the active galaxy NGC 4151, dubbed "The Eye of Sauron," with unprecedented precision. This calculation enabled them to determine that NGC 4151's central black hole is 40 percent more massive than thought.
26 November 2014, 11:31 AM ET
Can you tell me how to get, how to get to... Mars? Elmo, Cookie Monster and the other muppets from "Sesame Street" have joined forces with NASA to count down to the first launch of the Orion spacecraft.
26 November 2014, 09:52 AM ET
Observers with keen eyes will be able to see two little-spotted planets in the night sky this season.
26 November 2014, 09:42 AM ET
NOAA has released satellite imagery of the storm set to snarl holiday travel on Nov. 26th, 2014. The storm can be seen traveling from south to north along the east coast of the United States.
26 November 2014, 07:31 AM ET
A multicolored group of stars shine at the bottom of a cosmic wishing well in an amazing new image.
26 November 2014, 07:23 AM ET
Astronaut Barry "Butch" Wilmore delivers a Thanksgiving message from the International Space Station, and does his best impression of a bat by dangling upside down.
25 November 2014, 05:49 PM ET
An op-ed by Mike Snyder, lead engineer for Made In Space, whose 3D printer just produced its first part aboard the International Space Station.
25 November 2014, 03:33 PM ET
The 3D printer aboard the International Space Station produced its first part today (Nov. 21). The milestone moment marks a big step toward a future in which humanity explores far beyond its home planet, some experts say.
25 November 2014, 03:33 PM ET
The milestone marks a key step toward a future in which voyaging spaceships print out their own spare parts on the go and colonists on other worlds make what they need from the dirt beneath their boots, 3D printing advocates say.
25 November 2014, 02:38 PM ET
The capsule will travel about 3,600 miles (5,800 kilometers) from Earth, then zoom back again at high speeds in order to test various systems, including its heat shielding and resistance to radiation.
25 November 2014, 01:06 PM ET
Astronauts aboard the International Space Station may be far from home, but they'll be celebrating Thanksgiving with the same dishes as friends and family on the ground.
25 November 2014, 10:33 AM ET
The largest sunspot to appear on Earth's nearest star in more than two decades is once again pointed at the planet, and it will likely kick-start solar storms, NASA scientists say.
25 November 2014, 08:58 AM ET
NASA astronaut Barry “Butch” Wilmore talks about this years Thanksgiving meal aboard the International Space Station and what he has to be thankful for.
25 November 2014, 07:23 AM ET
The space-funding company Uwingu will send nearly 90,000 messages to Mars this Friday (Nov. 28) to help celebrate the 50th anniversary of the launch of NASA's Mariner 4 probe, the first successful Red Planet mission.
25 November 2014, 07:20 AM ET
This evening, look low near the west-southwest horizon about an hour after sunset for a slender (14 percent illuminated) crescent moon. Mars will sit about 9 degrees to the left of the moon.
25 November 2014, 07:07 AM ET
NASA's newest deep space capsule Orion, is getting ready for its first unmanned test flight, launching next week.
25 November 2014, 07:00 AM ET
The 3D printer aboard the International Space Station has created its first part, a piece of itself called an extruder plate. What will astronauts want to print out next?
24 November 2014, 03:31 PM ET
An incredible, reprocessed picture of Jupiter's moon Europa shows the mysterious natural satellite's amazing colors as they have never been seen before.
24 November 2014, 03:30 PM ET
See photos of Jupiter's ice-covered moon, Europa
24 November 2014, 01:40 PM ET
NASA is due to launch the first test flight of its deep space Orion capsule on Dec. 4. Read all about the historic unmanned test flight here.
24 November 2014, 12:00 PM ET
They won't be home for Summer vacation: See how astronauts celebrate holidays in space.
24 November 2014, 11:00 AM ET
The stunning green glow in this image comes from an aurora at Glacier National Park in Montana. Astrophotographer John Ashley took this image from Livingston Mountain Range in Glacier National Park on Oct. 20, 2014.
24 November 2014, 10:32 AM ET
The European Space Agency's Clean Space program is launching a multi-faceted approach to dealing with the issue of dangerous space debris
24 November 2014, 08:00 AM ET
New research shows that dark energy may be eating up dark matter and slowing down the rate that the universe is expanding.
24 November 2014, 07:01 AM ET
A massive population of stars is missing, and scientists are stumped as to where it could be.
24 November 2014, 07:00 AM ET
While wormholes are possible according to Einstein's theory of general relativity, it's unlikely that people will ever be able to travel through one, said renowned astrophysicist Kip Thorne of the California Institute of Technology in Pasadena.
24 November 2014, 12:20 AM ET
A new crew of three arrived at the International Space Station today (Nov. 23) after a quick trip to the orbiting outpost.