Stories by SPACE.com

The 86-year-old moonwalker was visiting the South Pole as a tourist when he fell ill, and is reportedly now in stable condition

NASA’s Cassini spacecraft begins a series of daring dives through Saturn's rings Nov. 30, the first step in the probe’s “grand finale” investigation of the gas giant planet

A new report lists 25 "knowledge gaps" in our understanding of how to avoid cross-contamination between Earth and Mars

Scientists think bright spots may be briny material bubbling up into a crater 

Microsoft's HoloLens headsets are already aiding astronauts on the International Space Station, and next-generation VR could prove vital for journeys to Mars

After delays due to wildfires, the Worldview-4 satellite is finally headed to space

Scientists have found a world that looks like ours, but has deadly winds and rains molten glass

Now recovered from protective hibernation, the spacecraft is preparing for its next close encounter with the giant planet

A new class of stellar objects could be causing ultrabright repeating outbursts from old, quiescent galaxies

The latest science returns from NASA's Juno mission to Jupiter are filled with surprises

Despite the likely loss of its Schiaparelli lander, the Trace Gas Orbiter is gearing up for spectacular science at Mars

The premature deployment or jettisoning of its heat shield and parachute may have doomed the Schiaparelli lander

The object is 530 kilometers across, and lurks in a region beyond Pluto  

In a new op-ed, the President of the United States reiterated his plan to send humans to Mars sometime in the 2030s.

A “ride-out” team of 139 people is staying through the two-day shutdown 

The fifth and final flight of the New Shepard vehicle demonstrated the vehicle's in-flight escape system for future passengers

The bizarre object’s overall brightness has been gradually dimming for years 

Harsh radiation, thin air and frigid temperatures on the Red Planet likely forced any extant microbes into subterranean refuges long ago

A deliberate collision with a comet brought the historic space mission to an end

The entrepreneur announces detailed plans for a reusable craft that can cary 100 people 

New images capture best-yet view of cometary disintegration

Data from the New Horizons probe suggests Pluto's atmosphere paints the north pole of Charon, its largest moon

OSIRIS-REx is set to scrape dirt and gravel from a space rock and return to Earth in 2023

Scientists spotted the space rock two days before its flyby