Stories by SPACE.com

New research suggests cold, Mars-like planets will, once warmed, skip over any Earth-like phase to Venus-like conditions

New observations of stars orbiting the Milky Way’s central giant black hole confirm Einstein’s theory yet again

When New Horizons flies by Kuiper belt object MU69 in 2019, it may find two space rocks rather than one

The upper atmosphere of the giant exoplanet WASP-121b may be wreathed in layers of glowing water vapor

The finding raises new questions about the nature of these colossal cosmic explosions

The two co-orbiting brown dwarfs drift between the stars 95 light-years from Earth, and form the lightest binary system ever found

Data from an Indian lunar orbiter hints at substantial water in the lunar interior

Two new studies suggest the system’s potentially habitable planets could have lost their atmospheres long ago

Congressman Dana Rohrabacher asks about ancient aliens during a routine hearing

Fresh insights are emerging from studying the "microsociety" onboard the International Space Station

New study suggests the middleweight worlds can create delicate ring-like features around other stars

The radio bursts are tantalizing, but probably not transmissions from talkative aliens

 Scott Pace, the director of the Space Policy Institute at George Washington University, will be the Council’s executive secretary

The Vice President spoke of a return to the Moon and human missions to Mars, but offered few further details

Microbes could be killed off by perchlorates exposed to ultraviolet radiation on the planet’s surface

 After a half-century hiatus, the agency is reviving its reactor development with a test later this summer

The company has now landed a recycled rocket for the second time

From chemical changes to thermal burns, a rundown on exactly what staring at the sun can do

The billionaire entrepreneur and founder of SpaceX wants to make humanity a "multi-planetary species”

A small NASA-funded company is slimming down nuclear fusion reactors for space science

A dozen new candidates were chosen from more than 18,000 applicants. Now the real work begins

Scientists employ ‘gravitational lensing’ to measure the mass of a white dwarf

Orbital resonances reveal the Earth-size world circles its star every 19 days

Most of the Milky Way’s antimatter may come from the explosive collisions of white dwarf stars