A new study hints that the most energetic particles ever seen come from far beyond the Milky Way.
The Cassini orbiter will burn out, but its legacy won’t fade away
Isolated in a giant thermal vacuum chamber, NASA’s $8.6 billion next-generation observatory is riding out the worst of Hurricane Harvey
A new documentary marks the 40th anniversary of humanity’s most audacious interplanetary spacecraft
Is our nearest neighboring exoplanet, Proxima b, an "Earth next door," or is it a lifeless rock?
America is preparing for a sea-to-shining-sea solar eclipse. Here’s how you can watch the spectacular display, and maybe even snap a photo to commemorate the event, without burning your retinas or damaging your camera’s optics.
Despite technical glitches and regulatory hurdles, nanosatellite swarms could someday be the cornerstone for revolutionary interplanetary or even interstellar space-science missions
New results suggest free-floating giant planets are less common than previously believed, but hint at vast numbers of smaller castaway worlds
Scientists and the public are dazzled by images from the spacecraft’s close encounter with Jupiter’s largest—and the solar system’s most famous—storm
The discovery could offer fresh insight into how fundamental forces bind together subatomic particles
Results from the Micius satellite test quantum entanglement, pointing the way toward hack-proof global communications—and a new space race
New results from the gravitational wave observatory hint that black holes move in mysterious ways
A start-up aims to add new construction to the International Space Station to prep for a private sector orbital outpost
Scientist and author Gregory Benford discusses his latest book, The Berlin Project
The winner of the 2017 Discovery Prize discusses his work watching electrons moving through molecules
Physicist and author Janna Levin will present a free live Webcast tonight at 7 P.M. Eastern time about merging black holes and gravitational waves
Hypervelocity stars, and the black holes that launch them, whip through space at millions of miles per hour.
Planet LHS 1140 b orbits a dim red dwarf star just 40 light-years away, making it a prime target for life-finding telescopes
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