Stories by SPACE.com

Orbital Science's investigation of its rocket's catastrophic failure 15 seconds after launch last week is still underway

One pilot is dead, and one injured after SpaceShipTwo failed during a rocket-powered test flight over Mohave, Calif.

Orbital Sciences’s Antares rocket burst into flames mere moments into its mission to send a cargo-carrying spacecraft to resupply the International Space Station. NASA reported no injuries to personnel

Orbital Sciences' unmanned Cygnus spacecraft is set to blast off atop an Antares rocket at 6:22 pm EDT from a NASA facility in Virginia

Weather permitting, nearly all of North America will be able to experience a partial solar eclipse of the sun on Thursday

NASA's rovers and orbiters at Mars will witness a close encounter with a comet on October 19, an event that happens once every million years

The early moon was more dynamic than scientists previously thought

Apollo astronauts hopped across the moon because of their stiff suits, not because of low lunar gravity

The India Space Research Organization unveils its first pictures of the red planet

If all goes according to plan, the two companies will reduce or end NASA's dependence on Russia for its orbital taxi service

The solar weather is expected to cause significant auroral displays across much of the northern U.S. on Friday night

The InSight Mission will measure the planet's rotation, weather at the landing site and magnetic disturbances to reveal more about Mars' inner workings and early development

Photographers managed to capture images of shooting stars despite nearly full moon

While a bright nearly-full moon will interfere with Perseid meteor observing, six other six lesser celestial displays will reach their peak in dark skies

The team intends to rescue the International Sun-Earth Explorer 3 and then focus on what to use the spacecraft for

From the eastern U.S. and Canada, the closest approach will take place after sunset. From the central Pacific Ocean, Hawaii, western portions of Central America and the northern half of South America, the moon will occult Mars

Mission controllers are uncertain as to what happened with the pad's water system, but might attempt the launch again on Wednesday

The satellite is destined for an orbit 438 miles above Earth and will use a spectrometer to measure CO2 concentrations in the air 24 times per second

A private spacecraft is planned to skim through the atmosphere of Mars to gather dust and return home, without the difficulty of landing

What might be the effects if a large asteroid collided with Earth?

Kepler will rely on solar radiation pressure to balance its compromised pointing ability in order to make observations of targets in the plane of Earth's orbit

Shat was honored for his "outstanding generosity and dedication to inspiring new generations of explorers around the world"

NASA's Kepler space telescope has identified a planet that is both similar in size to Earth and within the habitable zone of its sun

The combination of solar wind and interplanetary dust may have contributed some of Earth's water