29 May 2015, 02:00 PM ET
NASA engineers talk about the specialized tools they developed to keep Hubble running for a quarter of a decade.
28 May 2015, 05:45 PM ET
NASA has awarded prize money to five members of the public for their ideas about how to limit astronauts' radiation exposure during journeys through deep space.
28 May 2015, 01:36 PM ET
Astronauts on the International Space Station moved a closet-like storage module to a new spot on the orbiting lab Wednesday (May 27) to make room for a new docking port to welcome private space taxis in 2017.
28 May 2015, 08:00 AM ET
It is a sight no one thought possible again: a complete NASA space shuttle standing vertical as if poised for launch. But that's exactly what the California Science Center will do. NASA's last shuttle fuel tank is headed to L.A.
28 May 2015, 07:48 AM ET
The 2-minute video integrates footage taken by cameras aboard Dragon during its key launch-escape test, showing key events such as parachute deployment up close — and providing great Dragon's-eye views of the Space Coast landscape.
27 May 2015, 06:28 PM ET
If the private space company’s Falcon booster were to fail, Dragon showed it can blast astronauts to safety during this test of May 8th, 2015. The capsule kicks from 0-100 MPH in 1.2 seconds – about 4G of acceleration.
27 May 2015, 09:23 AM ET
On March 28th, 2015, the Soyuz TMA-16M (Expedition 43) mission docked with the ISS. A camera aboard the spacecraft captured the rendezvous and docking.
26 May 2015, 07:40 PM ET
Flight controllers will robotically move the Permanent Multipurpose Module from the orbiting lab's Unity module over to the Tranquility module. You can watch live here at Space.com beginning at 8 a.m. EDT Wednesday, courtesy of NASA TV.
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, 11:23 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, 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.
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, 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.
22 May 2015, 10:34 AM ET
A manned mission to Pluto may be far out, but it's not impossible.
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.
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.
20 May 2015, 02:00 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. The banner depicts seven interlocked circles, symbolizing the unity of all people.
19 May 2015, 11:18 AM ET
The U.S. Defense Department is suggesting that the May 2013 launch of a Chinese rocket that it branded at the time as suspicious was a test of a technology designed to counter or destroy satellites in geosynchronous orbit.
18 May 2015, 05:28 PM ET
Chuck Norris Fact #905: Before NASA used a 747 jet to ferry its space shuttles, Chuck Norris carried the orbiters on his back. That may or may not be true, but Norris did help land a punch of support for the exhibit of the Shuttle Carrier Aircraft in Hous
18 May 2015, 01:34 PM ET
Three boulders balancing like ballerinas have been spotted on the surface of a comet by the Rosetta spacecraft. Only a small area on the surface of each rock is touching the ground, similar to "balancing rocks" seen on Earth.
18 May 2015, 07:00 AM ET
Boeing has begun testing components of the CST-100 crew capsule's 'pusher abort system' at NASA's Langley Research Center in Virginia.
17 May 2015, 10:33 AM ET
A Russian cargo craft may have failed due to a problem with the rocket that launched it into space, and an astronaut explains how to "go" in space. Here are Space.com's top stories of the week.
17 May 2015, 09:17 AM ET
From the coast of Japan to a dragon selfie, don't miss these amazing space images of the week for May 17, 2015.
15 May 2015, 04:23 PM ET
If you've been a fan of NASA's website for more than a decade, you can thank an unlikely space geek: actor Tom Cruise.
15 May 2015, 11:01 AM ET
Settling Mars could help humanity escape and mitigate the problems our species is facing here on Earth, several science-fiction authors said.
15 May 2015, 07:00 AM ET
"Elon Musk: Tesla, SpaceX, and the Quest for a Fantastic Future," by tech journalist Ashlee Vance, will be released on May 19. But you can get a sneak peak at the book now, via a lengthy excerpt published Thursday (May 14) on Bloomberg.com.
14 May 2015, 03:17 PM ET
A preliminary investigation has revealed that the Progress 59 freighter's issues stemmed from a too-early separation of the Soyuz's third stage, officials with Roscosmos, Russia's federal space agency, announced Tuesday (May 12).
14 May 2015, 01:54 PM ET
A dense cloud of gas that astronomers are calling a 'cosmic dinosaur egg' appears to be on the cusp of birthing millions of stars. This may be the youngest example of an object called a globular cluster.
14 May 2015, 12:47 PM ET
See amazing images of the night sky and cosmos in SPACE.com's gallery of cosmic images posted in April 2015.
14 May 2015, 07:20 AM ET
NASA astronaut Scott Kelly says he's settling into his epic yearlong mission to the International Space Station, thanks in small part to the 'ISSPresso' coffee machine that arrived at the orbiting lab last month.
13 May 2015, 03:17 PM ET
Brightman was scheduled to launch Sept. 1 on a self-funded 10-day mission to the orbiting lab aboard a Russian Soyuz spacecraft. But Brightman announced today (May 13) that she won't be making the trip to orbit.