There's a new guy in the galactic neighborhood — a small, ultra-faint satellite galaxy has been discovered orbiting the Milky Way. Its discovery will help scientists better understand dark matter, a mysterious substance that makes up most of the mass in t
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A giant deposit of buried ice on Mars contains about as much water as Lake Superior does here on Earth, a new study reports.
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There's a huge hole in the sun, but it has nothing to do with alien spaceships or any other conspiracy theory.
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On Nov. 16th, 2016, NASA's STEREO probe had an imaging processing glitch that caused the HI-1 feed to display image composites from three different imagers (EUVI. HI-1. HI-2).
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Space.com talked with "Arrival" consultant Stephen Wolfram about the way science fits into movies, how aliens are like artificial intelligences and whether math is invented or discovered — and what that would mean for alien mathematics and alien thought.
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NASA's Dawn probe is snapping stunning new views of the dwarf planet Ceres as the spacecraft pushes ever higher above the small world.
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After analyzing the crater from the cosmic impact that ended the age of dinosaurs, scientists now say the object that smacked into the planet may have punched nearly all the way through Earth's crust, according to a new study.
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The next-generation NOAA satellite series will improve observations of the atmosphere, lightning, space weather, and more. It will help improve weather forecasts in the future.
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A new environmental-monitoring satellite will fly a lightning mapper higher than ever before, permitting better severe-storm monitoring across the United States and in nearby regions, NASA officials say.
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NASA's newest Mars orbiter has now been on the job for two Earth years, investigating how the Red Planet lost its atmosphere in the ancient past.
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