Scientists find molecular hydrogen and liquid-water geysers on ocean-bearing moons in the outer solar system
Short films about exploding stars and subatomic particles top the list of prizewinners from the annual Quantum Shorts contest
Bizarre “plastic” dunes made sticky by static cling may cover the surface of Saturn's largest moon—and could threaten future missions there
Pierogi moons, rubber duckie comets and spewing ice balls: We have some very strange neighbors among the myriad planets, moons and objects that circle our sun.
His new book, New York 2140, explores the interplay of climate change and global finance on a warmer, wetter future world
Astronomer Amber Straughn will present a free live Webcast tonight at 7 P.M. Eastern time about NASA’s revolutionary space observatory
A baker’s half-dozen of Earth-size worlds is orbiting a (relatively) nearby star—and some could be habitable
Astronomers say at least three of the worlds may be habitable, and could be studied for signs of life within a decade
Jupiter’s ocean-bearing moon is the next frontier in NASA’s hunt for extraterrestrials
New studies suggest lonely planets flying through intergalactic space were formed by star-destroying supermassive black holes.
Humanity possesses the means to place probes into orbit around nearby stars. But do we have the patience?
There is still good reason to think undiscovered fundamental particles act as gravitational glue for galaxies.
A new public-private partnership is supercharging the race to image habitable exoplanets
Despite a breakthrough discovery by radio astronomers, the decade-long puzzle of elusive “fast radio bursts” is far from being solved
Book recommendations from Scientific American
Don Pettit discusses his dazzling orbital photographs of our home planet
Water vapor erupting from this Jovian moon could offer new pathways for exploring its subsurface ocean
Take a light-speed trip through the solar system to catch up on 2016’s biggest stories from our celestial neighborhood. Produced with support from Explore Scientific
The new administration will likely shift NASA resources away from Earth exploration and into deep space. But many questions remain about how the agency will be led and funded
The President-elect’s space policy platform calls for disruptive reorganizations and possible budget cuts to Earth-observing satellite programs