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Posts by
Editors of EarthSky
Fossils reveal earliest known live birth
The fossil embryos of three little ichthyosaurs are preserved within the body of their mother that died while giving birth, 248 million years ago.
February 13, 2014
New system lets fleets of robots collaborate in new ways
MIT researchers have developed a new system that stitches together existing control programs to let multiple robots collaborate in more complex ways.
February 12, 2014
A 360-degree view of Saturn’s auroras
Ultraviolet and infrared images from NASA's Cassini spacecraft and Hubble Space Telescope show active and quiet auroras at Saturn's north and south poles.
February 11, 2014
Genetic mix lets Tibetans thrive at high altitudes
A new study looks at the genetic adaptations that allow Tibetans to live at high elevations despite low oxygen levels.
February 11, 2014
NASA photos suggest water might be flowing on Mars
New clues about the mysterious streaks that appear on the surface of Mars during warm weather. Scientists they might be caused by flowing water.
February 11, 2014
The oldest known star in the universe
The ancient star, about 6,000 light years from Earth, formed 13.7 billion years ago, shortly after the Big Bang. It's the oldest star yet found.
February 10, 2014
What killed the woolly mammoth? New clues.
Ten thousand years ago, large mammals of the Arctic, like the woolly mammoth, went extinct. What caused it? Climate change? Disease? Over-hunting by humans?
February 10, 2014
What if the sun disappeared?
We wouldn't know the sun was gone for eight-and-a-half minutes. Then Earth would head off in a straight line, into eternal night.
February 8, 2014
Catch-and-release fishing creates too much trauma for some sharks
When a shark swims away after being caught by a catch-and-release sport fisherman, that doesn't mean the shark will survive the encounter.
February 7, 2014
Why does this brown dwarf have such strangely red skies ?
Brown dwarfs straddle the line between stars and planets. This one caught researchers' attention for its extremely red appearance. Turns out its atmosphere is laden with dust.
February 7, 2014
