23 April 2015, 01:00 PM ET
SpaceX's daring reusable rocket test last week came up just short because of an issue with a 'throttle valve,' company founder and CEO Elon Musk said.
23 April 2015, 12:30 PM ET
An awe-inspiring landscape of multicolored dust and jewel-like stars has been unveiled as the official image of the 25th anniversary of the Hubble Space Telescope.
23 April 2015, 12:21 AM ET
Astronaut Scott Kelly has started a geography game, asking Twitter users to identify locations on Earth based on photos from space.
22 April 2015, 10:36 AM ET
In 2010, President Obama set forth several initiatives for America’s space agency. This 2015 NASA video attempts to report on the status of those projects.
22 April 2015, 07:37 AM ET
On the 25-year anniversary of the launch of the Hubble Space Telescope, Space.com talked with science writer Robert Zimmerman, author of "The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built it."
22 April 2015, 07:30 AM ET
The new documentary 'PLANETARY' includes interviews with former NASA astronauts, and urges viewers to reduce the fast pace of their technologically driven lives and embrace the slower rhythms of nature.
22 April 2015, 07:13 AM ET
As Earth Day (April 22) reaches its 45th anniversary, NASA has a series of activities planned to celebrate the beauty of our home planet.
22 April 2015, 07:00 AM ET
In the documentary, 'PLANETARY,' former NASA astronaut Ron Garan gives an eloquent look at the fragility of the planet humanity calls home, and we have an exclusive clip of the film that captures his view.
22 April 2015, 07:00 AM ET
An excerpt from the book "The Universe in a Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built it," demonstrates how the Hubble telescope transformed humanity's view of the universe.
21 April 2015, 05:34 PM ET
ABC's 'The Astronaut Wives Club' now has its launch date. The new docudrama about the spouses of the first U.S. spacemen will premiere Thursday night, June 18, 2015 at 8 p.m. EDT, the TV network has announced.
21 April 2015, 05:07 PM ET
A historic U.S. spacecraft that launched the second American astronaut into space has landed back in Kansas after spending eight months overseas. Liberty Bell 7 returned to the Kansas Cosmosphere following its loan to an art exhibition in Germany.
21 April 2015, 11:22 AM ET
European astronaut Samantha Cristoforetti tweeted a photo of herself aboard the International Space Station, wearing a uniform from the "Star Trek: Voyager" TV series.
21 April 2015, 07:03 AM ET
Planetary scientist Paul Spudis has long been calling for humanity to return to the moon. He tells Space.com why manned exploration of Earth's nearest neighbor is so important.
20 April 2015, 02:58 PM ET
Today NASA launched a redesigned version of the website www.nasa.gov, which now puts heavy emphasis on images and social media.
20 April 2015, 02:25 PM ET
Dawn, which arrived at Ceres on March 6, imaged the mysterious bright spots on April 14 and 15 during a photography campaign designed to help guide the spacecraft to its first Ceres science orbit by April 23.
20 April 2015, 01:41 PM ET
Two fabric straps that held in place the life support backpacks worn by astronauts while they walked on the moon are up for auction, along with hundreds of other space artifacts at a pair of space history-themed sales.
20 April 2015, 01:01 PM ET
NASA researchers have come up with a plan to send piloted, helium-filled airships cruising through Venusian skies. The idea, called the High Altitude Venus Operational Concept (HAVOC), could eventually lead to cloud cities on the planet.
20 April 2015, 11:08 AM ET
An iconic symbol of NASA's origins as a powerhouse for aviation innovation has found a new home at the Smithsonian's National Air and Space Museum in Washington, DC.
20 April 2015, 10:15 AM ET
Hubble has faced challenges over its quarter-century lifetime, but none have been more well-known than the problem that almost made it a few billion dollars worth of space junk.
20 April 2015, 07:15 AM ET
For the 25th anniversary of the Hubble Space Telescope in April 2015, 25 images were selected for a special gallery, one for each year of Hubble's lifespan.
19 April 2015, 09:20 AM ET
SpaceX nearly pulled off an unprecedented rocket landing during a cargo launch to the International Space Station and NASA's New Horizons probe returned its first color image of Pluto. Here's a look at Space.com's top stories of the week.
19 April 2015, 08:12 AM ET
Orbital debris is a menace – that's a fact. How to de-clutter space from human made junk is an on-going concern by numbers of countries. Space nets, laser blasts, garbage scows, giant foam balls - these and other techniques have been proposed.
19 April 2015, 08:00 AM ET
Space.com contributor Leonard David visited the OSIRIS-REx spacecraft under construction in Denver, Colorado.
18 April 2015, 01:20 PM ET
From the first color image of Pluto to an awesome new SpaceX Video, don't miss these amazing space images of the week for April 19, 2015.
17 April 2015, 01:36 PM ET
Ceres' cratered north pole blazes through the darkness in new images captured by Dawn on April 10. The photos are the highest-resolution views of the world that Dawn has gotten since entering orbit on March 6, NASA officials said.
17 April 2015, 07:10 AM ET
Italian astronaut Samantha Cristoforetti grappled Dragon with the space station's huge robotic arm at about 7:00 a.m. EDT (1100 GMT) Friday (April 17), securing the commercial capsule to the Earth-facing port of the Harmony module.
17 April 2015, 07:00 AM ET
SpaceX, United Launch Alliance, Blue Origin and other spaceflight firms are working to make reusable launch systems a reality.
16 April 2015, 03:28 PM ET
NASA's MESSENGER probe, which has been circling Mercury since March 2011, is nearly out of fuel and will say goodbye with a dramatic death plunge on April 30, provided one final orbit-raising maneuver scheduled for April 24 goes as planned.
16 April 2015, 03:00 PM ET
Experiments for the International Space Station's first one-year crew will be among Dragon's precious cargo when it arrives at the orbiting complex this week.
16 April 2015, 02:39 PM ET
The International Space Station is about receive perhaps its most important upgrade to date: a microgravity espresso maker!
16 April 2015, 02:10 PM ET
They made the first 3D printer to be used in space possible. They made the files used to 3D print their tools in space available. Now, Made In Space is making the material used to 3D print in space for sale.
16 April 2015, 01:35 PM ET
A statue honoring astronaut Sally Ride, the first American woman in space, could one day stand in the U.S. Capitol, if a California lawmaker's resolution continues to advance. The statue would replace the monument for a controversial Spanish missionary.