
Stellar Winds Could Be Bad News for Life on TRAPPIST-1 Planets
Two new studies suggest the system’s potentially habitable planets could have lost their atmospheres long ago
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
Researchers should begin planning instruments to go on a potential life-hunting lander mission to Jupiter's ocean-harboring moon Europa, the space agency said
Astronomers have found a moon orbiting the third-largest dwarf planet in our solar system
The crowdsourced effort intends to build replicas of the famed "galactic greeting cards," which are traveling out of the solar system on the Pioneer 10 and 11 space probes
Support science journalism.
Thanks for reading Scientific American. Knowledge awaits.
Already a subscriber? Sign in.
Thanks for reading Scientific American. Create your free account or Sign in to continue.
Create Account