Fifty years ago this week, a small group of astronomers detected the very first pulsar, and mistook it for a possible signal from an alien civilization.
A study using data from an Earth-observing weather satellite shows that in both developed and developing nations, Earth's night skies are being filled with artificial light more and more each year.
Scientists searching for ghostly subatomic particles called neutrinos from cosmic sources made an important stride in understanding how to catch these slippery specters.
Bad news for microbes on Mars: A new paper argues that dark streaks on the Martian surface are not caused by underground supplies of liquid water.
This week, organizers revealed some of the very first cosmic objects that the James Webb Space Telescope will study.
A powerful new instrument that will search the cosmos for exploding stars and fast-moving space rocks has captured its first image of the night sky.
A gallery if images from the Zwicky Transient Facility's (ZTF) first view of the universe, and its ultra-wide-field camera, based at the Palomar Observatory.
NASA has moved up a test of the Orion human spacecraft's launch-escape system (LES) and is working on safety measures for the vehicles first crewed flights.
A new photography book zooms in on micrometeorites — incredibly small, surprisingly complex, undeniably beautiful space rocks that liter the surface of the Earth.
Check out our gallery of stunning images from the upcoming book "In Search of Stardust: Amazing Micrometeorites and Their Terrestrial Imposters."
Say hello to the Joint Polar Satellite System 1 (JPSS-1), a new weather satellite with a wide range of capabilities.
Jupiter's southern hemisphere is a swirling, curling sea of colorful clouds in a new image from NASA's Juno spacecraft and two citizen scientists.
It did not quietly into the night: An exploding star left behind an echo of light, captured by the Hubble Space Telescope.
Take a tour of colorful, computer-simulated nebulas — enormous cosmic clouds gas and dust — in a stunning new video.
Jupiter's northern and southern lights continue to dazzle — and puzzle — the scientists who study them, as highlighted in a new video from NASA.
What real-world exoplanet would make an ideal home for a werewolf? What's the most terrifying planet in the universe? NASA's exoplanet scientists have the answers.
Black hole hunters should turn their eyes to the quiet, outer regions of galaxies like the Milky Way, a new study suggests.
A massive, glowing bubble of light erupted in the sky above northeastern Siberia, which may have been created by a test missile launch.
The discovery of water plumes on Enceladus led to the revelation that this tiny ice ball could host a habitable environment under its surface. But scientists almost didn't find the plumes at all.
Why does DARPA want to build a reusable space plane? An agency representative explains what small satellites have to do with national defense.
NASA's Dawn spacecraft has been granted a mission extension that will allow it to continue to study the dwarf planet Ceres until it runs out of fuel sometime in 2018.