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New scans reveal hidden monuments of Stonehenge
The startling results of a new survey include 17 previously unknown monuments and dozens of burial mounds surrounding Stonehenge.
September 12, 2014
First evidence for water-ice clouds outside our solar system
The first evidence for water-ice clouds on an object beyond our solar system. It's a brown dwarf, one of our closest neighbors, only 7 light-years away.
September 12, 2014
Significant auroras predicted for tonight
Reports from NOAA and elsewhere predict a chance of significant auroras, possibly observable as far south as the northern U.S. and maybe even farther south.
September 12, 2014
Video: Jellyfish flame on the ISS
Fire in space doesn't act like fire here on Earth. Untethered by gravity, flames in space curl themselves into tiny balls.
September 11, 2014
Astronomers solve 20-year-old quasar mystery
New works suggests most observed quasar phenomena depend on two things: how efficiently a central black hole is being fed and the astronomer's viewing orientation.
September 11, 2014
Why our Milky Way galaxy has fewer satellites than expected
European cosmologists and particle physicists come together to tweak an accepted model of how cold dark matter helps build galaxies in our universe.
September 9, 2014
A preliminary map of different regions on Rosetta’s comet
The comet turns out to be a unique, multifaceted world. We now know comets can have cliffs, depressions, craters, boulders or even parallel grooves.
September 9, 2014
Moonlets are born and quickly die in Saturn’s F ring
Tiny moons, no bigger than large mountains, may coalesce and collide with the densest part of the ring, creating luminous knots. But the moons don't last long.
September 9, 2014
What’s the source of a mysterious ozone-depleting chemical?
The Montreal Protocol put the brakes on ozone-depleting chemicals 30 years ago. But one compound is still abundant in Earth’s atmosphere. Where's it coming from?
September 8, 2014
California blue whales rebound from whaling
In a conservation success story, the number of California blue whales has rebounded to near historical levels after being hunted to near extinction.
September 8, 2014
