17 May 2015, 07:01 AM ET
The unmanned X-37B spacecraft is scheduled to launch Wednesday (May 20) at 10:45 a.m. EDT atop a United Launch Alliance Atlas V rocket from Florida's Cape Canaveral Air Force Station, kicking off the vehicle's fourth mission.
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.
12 May 2015, 11:06 AM ET
An inflatable drone could cruise the sulfurous skies of Venus next decade if Northrop Gruman can sell NASA on the mission.
11 May 2015, 07:21 AM ET
For years, tiny payloads have been launched into Earth orbit on satellites smaller than a loaf of bread.
11 May 2015, 07:01 AM ET
Small and economical "cubesats" already eye our planet from orbit. But such bantam craft are about to start pushing out into deep space, helping researchers study and explore the moon, asteroids and other distant bodies.
11 May 2015, 07:00 AM ET
The new ideas funded by the NASA Innovative Advanced Concepts (NIAC) program include a squid-like amphibious rover that could explore icy, ocean-harboring moons such as the Jupiter satellite Europa.
11 May 2015, 07:00 AM ET
The Internet has been abuzz recently with reports that a NASA research team has made significant progress toward developing a propellant-free thruster system. But space agency officials are downplaying the results.
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, 06:26 PM ET
The U.S. Air Force’s Rapid Capabilities Office is scheduled to launch the fourth mission of the X-37B Orbital Test Vehicle (OTV) in May 2015.
08 May 2015, 08:57 AM ET
NASA’s Modular Robotic Vehicle (MRV), developed at the Johnson Space Center for eventual use off-world, could change how Earthly vehicles drive as well; ‘sideways’ on 4 independent wheel-motors, each of which can rotate 180°.
06 May 2015, 04:19 PM ET
Scientists at space agencies across the world are using satellite images and other technologies to aid those affected by Nepal's earthquake.
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, 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, 03:55 PM ET
NASA has successfully tested electromagnetic propulsion in a hard vacuum for the first time.
04 May 2015, 01:31 PM ET
The creator of the Ansari Xprize winning SpaceShipOne shares how a couple of bicycle shop owners (Wright Brothers) inspired Space exploration, and how the Apollo program inspired private space sector growth.
04 May 2015, 10:46 AM ET
Space: the final frontier — for coffee. Italian astronaut Samantha Cristoforetti, dressed in a 'Star Trek' captain's uniform, became the first person in space to sip from a freshly-brewed cup of coffee, using the ISS's new espresso machine.
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.
02 May 2015, 02:21 PM ET
From a spacecraft spinning out of control to predicting a cosmic demise, don't miss these amazing space images of the week for May 3, 2015.
01 May 2015, 03:07 PM ET
The private spaceflight company SpaceX will launch a pad abort test on May 6, 2015 to test the launch escape system on its manned Dragon spaceship. See the mission in photos here.
01 May 2015, 12:00 PM ET
The U.S. Air Force will test an innovative spacecraft thruster this month when it launches the latest mystery mission of its robotic X-37B space plane. Liftoff is set for May 20, 2015.
01 May 2015, 06:00 AM ET
Johann-Dietrich Wörner expressed his enthusiasm for a moon colony at the Space Foundation's National Space Symposium, a gathering of global, commercial, civil, military and "new space" experts that was held here from April 13 to April 16.
30 April 2015, 10:33 AM ET
The private spaceflight company Blue Origin launched a surprise test of its suborbital New Shepard spaceship on Wednesday (April 29) , a flight that successfully demonstrated the space capsule but failed to recover its reusable rocket booster.
30 April 2015, 07:00 AM ET
The International Space Station could one day get armed with a laser to shoot down space debris. This concept could eventually lead to a laser-firing satellite that could get rid of most of the most troublesome space junk orbiting Earth.
29 April 2015, 01:01 PM ET
The 'Space Spider' handheld 3D scanner can work in microgravity and features an advanced cooling system that prevents overheating — a common issue for electronics in space, said representatives of the company that developed the machine.
29 April 2015, 12:14 PM ET
For more than 50 years, spacecraft have relied on rockets and tricky maneuvers to get out of danger when missions don't go as planned.
28 April 2015, 01:21 PM ET
The Senate voted unanimously April 27 to confirm Dava Newman as NASA's deputy administrator, more than six months after she was nominated.
27 April 2015, 05:09 PM ET
Movie nights aboard the International Space Station have just received a major upgrade with the launch of the first projection screen designed for use in microgravity.
27 April 2015, 04:14 PM ET
A SpaceX Falcon 9 rocket will launch the TurkmenAlem52E/MonacoSAT satellite into orbit for Turkmenistan and Thales Alenia Space on April 27, 2015. See the ramp up to the mission in photos in our photo gallery here.
27 April 2015, 02:28 PM ET
Call it a rocket builder’s Vulcan death grip. There appears to be a bit of a row between United Launch Alliance's just announced new Vulcan rocket and the Paul Allen Vulcan Aerospace enterprise, the big and bold Stratolaunch aircraft.
27 April 2015, 02:00 PM ET
A team of Russian researchers are using the Altai Optical Laser Center (AOLC) near Savvushka, Russia to image from the ground various spacecraft. The intent of their work is to help solve problems in space surveillance.
27 April 2015, 01:47 PM ET
A research team has published some intriguing work in Nature Geoscience regarding transient liquid water and water activity at Gale crater on Mars – the exploration zone of NASA’s Curiosity rover.
24 April 2015, 06:47 PM ET
The unmanned X-37B, which looks like a miniature version of NASA's now-retired space shuttle orbiter, is scheduled to blast off atop a United Launch Alliance Atlas V rocket from Florida's Cape Canaveral Air Force Station on May 20.