27 May 2015, 02:15 PM ET
The U.S. Air Force has certified SpaceX’s Falcon 9 rocket to launch military satellites, completing a nearly two-year process and establishing a competitor to United Launch Alliance in the national security marketplace.
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.
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.
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.
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, 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, 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.
10 May 2015, 09:05 AM ET
Russia's failed Progress 59 cargo spacecraft fell back to Earth, SpaceX's Dragon crew capsule launched on its first big test and the sun fired off its most powerful flare of 2015 so far. Here's a look at Space.com's top stories of the week.
08 May 2015, 09:46 PM ET
From espresso in space to a green and gold aurora, don't miss these amazing space images of the week for May 10, 2015.
06 May 2015, 09:06 AM ET
The Dragon crew capsule, slated to carry NASA astronauts and others, launched in a successful test of emergency abort procedures on May 6th, 2015.
06 May 2015, 06:40 AM ET
Planetary Resources' Arkyd-3R probe currently sits aboard the International Space Station and is scheduled to be deployed into orbit sometime in July, representatives of the Washington-based asteroid-mining company have said.
05 May 2015, 02:48 PM ET
SpaceX's Dragon astronaut taxi will blast off with a dummy on board Wednesday (May 6) in a crucial safety test, and you can watch all of the action live here at Space.com.
05 May 2015, 07:00 AM ET
The new image was snapped from the deck of the drone ship on April 14, a second or so before the rocket stage toppled over and exploded in a dramatic demise that SpaceX captured on video.
04 May 2015, 03:24 PM ET
Dragon is scheduled to lift off at 7 a.m. EDT Wednesday from Florida's Cape Canaveral Air Force Station to see how the capsule performs in the event of a problem during launch. You can watch the unmanned test live here on Space.com.
03 May 2015, 10:31 AM ET
A Russian cargo vessel suffered a serious malfunction on its way to the space station, NASA's MESSENGER probe slammed into Mercury and the New Horizons spacecraft snapped the best-ever photos of Pluto. Here's a look at Space.com's top stories of the week.
27 April 2015, 07:32 PM ET
The TurkmenAlem52E/MonacoSAT was launched aboard a Falcon 9 rocket on April 27th, 2015. The communication satellite was built by Thales Alenia Space.
27 April 2015, 07:30 PM ET
The Falcon 9 blasted off from Florida's Cape Canaveral Air Force Station at 7:03 p.m. EDT (2303 GMT). The two-stage rocket carried aloft the TurkmenÄlem52E/MonacoSat communications satellite, which will be operated by the government of Turkmenistan.
24 April 2015, 07:00 AM ET
SpaceX aims to subject a Dragon test vehicle to a "pad abort" trial at Florida's Cape Canaveral Air Force Station as early as May 5. The unmanned test will demonstrate how Dragon might respond in the event of a launch problem.
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.
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.
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, 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, 03:00 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.
15 April 2015, 05:47 PM ET
A new video shows the first stage of SpaceX's Falcon 9 rocket crashing and burning after nearly pulling off an unprecedented touchdown on an unmanned "drone ship" in the Atlantic Ocean.
15 April 2015, 07:00 AM ET
A stunning new video taken by a chase plane shows just how close SpaceX came to pulling off a historic rocket landing Tuesday (April 14) during the launch of its Dragon cargo capsule toward the International Space Station.
14 April 2015, 04:30 PM ET
SpaceX's Falcon 9 rocket launched the company's Dragon cargo capsule toward the International Space Station today (April 14) and then returned to Earth, nearly pulling off an unprecedented landing on a floating platform in the Atlantic Ocean.
14 April 2015, 04:16 PM ET
Atop a Falcon 9 booster, SpaceX’s Dragon cargo spacecraft – loaded with 4,000+ lbs of supplies and experiments – was launched from the Cape Canaveral Air Force Station in Florida on April 14th, 2015.
13 April 2015, 04:35 PM ET
The private spaceflight company SpaceX called off the launch of a Dragon spaceship and an ambitious rocket landing try on Monday (April 13) due to bad weather conditions. SpaceX hopes to try again on Tuesday, April 14, at 4:10 p.m. EDT.
13 April 2015, 02:00 PM ET
In April 2015, the private spaceflight company SpaceX will attempt to land its Falcon 9 rocket on a ocean platform after launching the sixth Dragon cargo mission for NASA. See photos from the Commercial Resupply Service 6 mission here.
13 April 2015, 07:00 AM ET
SpaceX aims to launch its robotic Dragon cargo capsule toward the International Space Station Monday at 4:33 p.m. EDT, then bring the first stage of its Falcon 9 rocket back for a soft landing on an unmanned ship in the Atlantic. Watch it live here.
12 April 2015, 10:12 AM ET
A total lunar eclipse wowed skywatchers and two private spaceflight companies tackled big challenges. These, and more, are Space.com's picks for the best space stories for the week of April 12.
12 April 2015, 09:34 AM ET
From a cosmic garden to fishing for space junk, don't miss these amazing space images of the week for April 12, 2015.
10 April 2015, 07:00 AM ET
SpaceX aims to bring the first stage of its Falcon 9 rocket back to Earth for a soft touchdown on an unmanned "spaceport drone ship" in the Atlantic Ocean after the booster sends Dragon on its way toward the orbiting lab Monday (April 13).
04 April 2015, 06:25 PM ET
From strange 'Hollows' on Mercury to eerie green space clouds, don't miss these amazing space images of the week for April 4, 2015.