23 February 2015, 05:22 PM ET
The first celestial object that attracts the attention of many people at a young age is the moon. The lunar surface appears to go through phases through the course of a month, but what causes the moon to shine differently from week to week?
23 February 2015, 05:00 PM ET
Researchers used the ALMA telescope array in Chile to pull apart the layers of star-forming regions in a nearby galaxy, revealing the differences that can cause starburst galaxies to create stars up to 1,000 times more rapidly than the Milky Way.
23 February 2015, 04:35 PM ET
Boeing and the United Launch Alliance are building a new astronaut access tower for Atlas rocket launches of future space taxis for NASA. See how it works.
23 February 2015, 01:26 PM ET
Ceres, orbiting between Mars and Jupiter, has almost no gravity, warmth or atmosphere.
23 February 2015, 01:17 PM ET
Three sub-orbital rockets may be visible from parts of the east coast as they head sky-ward in the wee hours of Tuesday (Feb. 24).
23 February 2015, 01:16 PM ET
This is definitely a new kind of space race. Two teams competing in a private moon competition have teamed up to get to the lunar surface by the end of next year, potentially sowing the seeds for a lunar NASCAR race.
23 February 2015, 12:00 PM ET
A beginner's guide to amateur astronomy including basic tools as well as optional and aspirational equipment for more experienced stargazers.
23 February 2015, 11:26 AM ET
On Feb. 21st, 2015, Space Station crew Barry Wilmore and Terry Virts set up cabling and other equipment in the first of 3 spacewalks to install a docking port adaptor for U.S. commercial crew vehicles.
23 February 2015, 10:55 AM ET
An art exhibit at the Cooper Hewitt Smithsonian Design Museum in New York City bring together tools from throughout human history: from ancient artifacts to cutting edge instruments for space exploration.
23 February 2015, 10:48 AM ET
NASA researchers think they understand why comets have a hard, crispy outside and a cold but soft inside — just like fried ice cream.
23 February 2015, 07:30 AM ET
With one reportedly flawless test flight already under its belt, officials are already planning a European space plane for its next test.
23 February 2015, 07:16 AM ET
An exhibit in New York City featuring a massive video display of the sun, artifacts from Skylab, and an early prototype of an astronaut spacesuit, draws together tools from throughout human history.
21 February 2015, 07:16 PM ET
Using the new SPHERE instrument on the European Very Large Telescope, astronomers have revealed the unusual double star does not have a brown dwarf star orbiting it as previously thought.
21 February 2015, 04:46 PM ET
Europe's last cargo spacecraft came down to Earth in a fiery blaze and scientists reported seeing mysterious plumes emanating from Mars. Here are Space.com's picks for the best space stories of the week.
21 February 2015, 12:42 PM ET
From mysterious plumes on Mars to a space station made of matchsticks, don't miss these amazing space images of the week for Feb. 22, 2015.
21 February 2015, 11:29 AM ET
A company that aims to send tourists to the edge of space in a balloon broke a record today, flying a parafoil higher than anyone has before.
21 February 2015, 10:32 AM ET
Two NASA astronauts successfully completed a 6 hour spacewalk that helped prepare the International Space Station for the arrival of private space taxis. The astronauts are scheduled to compete two additional spacewalks in the next 8 days.
21 February 2015, 12:30 AM ET
Two NASA astronauts will perform a spacewalk outside the International Space Station today (Feb. 21). People on Earth can watch the spacewalk live online.
20 February 2015, 07:15 PM ET
See photos from astronaut Terry Virts on a mission at the International Space Station.
20 February 2015, 05:35 PM ET
A strange set of 48 galaxies in the Coma Cluster has very few stars, revealing that these galaxies are especially rich in dark matter. The galaxies may have been robbed of much of their star-forming gas early in their formation, researchers say.
20 February 2015, 05:33 PM ET
A new "Alien" movie appears to be in the works, according to press reports. "District 9" director Neill Blomkamp announced the new movie by posting a photo of the alien on Instagram. "Um... So I think it's officially my next film. #alien," Blomkamp wrote
20 February 2015, 01:44 PM ET
See photos from astronaut Samantha Cristoforetti's on a mission at the International Space Station.
20 February 2015, 12:50 PM ET
A space fan crafted a model of the International Space Station made from 280,000 matchsticks. Check it out here.
20 February 2015, 11:55 AM ET
NASA this week begins work to reassemble parts of the International Space Station to create parking spots for two commercial space taxis.
20 February 2015, 11:33 AM ET
Orbital ATK, builders of the Space Shuttle Solid Rocket Motors and of the future Space Launch System, describe the avionics system for their March 2015 static-fire test of the booster in Promontory, Utah.
20 February 2015, 09:43 AM ET
Earth's water has a mysterious past stretching back to the primordial clouds of gas that birthed the Sun and other stars.
20 February 2015, 07:00 AM ET
NASA officials have asked scientists to consider ways that a Europa mission could search for evidence of alien life in the plumes of water vapor that apparently blast into space from Europa's south polar region.
20 February 2015, 07:00 AM ET
Two space-themed movies — the Stephen Hawking biopic "The Theory of Everything" and the sci-fi epic "Interstellar" — are up for a total of 10 Academy Awards, which will be announced Sunday night (Feb. 22).
20 February 2015, 12:43 AM ET
This spectacular space wallpaper shows ESO’s Paranal Observatory in Chile soon after sunset. The last rays of the day create a spectacular orange haze as they pass through the dusty lower levels of the atmosphere, setting a perfect scene.
19 February 2015, 10:39 PM ET
SpaceX is a private spaceflight company that regularly delivers payloads to the International Space Station via its Dragon spacecraft.
19 February 2015, 05:30 PM ET
For the first time, astronomers have caught a fast radio burst as it was happening and just might be zeroing in on the origins of these energetic events.
19 February 2015, 05:26 PM ET
The so-called 'demon star' of Algol is the most prominent eclipsing variable star in the night sky and if you know when and where to look, you can see the star appear to wink as it is eclipsed by another, dimmer star.