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Posts by
Editors of EarthSky
California scientists propose system to vaporize asteroids that threaten Earth
Two California scientists are unveiling their proposal for a system that could eliminate an asteroid threat.
February 15, 2013
NASA’S Fermi proves supernova remnants produce cosmic rays
A new study using observations from NASA's Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence the expanding debris of exploded stars produces some of the fastest-moving matter in the universe.
February 14, 2013
Cool images of Mars’ Red Valley
High-resolution stereo images of the southeast corner of the Amenthes Planum region on Mars, near to Palos crater and the mouth of a well-known sinuous valley, Tinto Vallis.
February 14, 2013
Rocketing into the northern lights
Auroras are a visible reminder of our planet’s connection to space. The “northern lights” and “southern lights,” as they are more commonly known, are like a rain of highly energized particles from the space around Earth.
February 13, 2013
Wide Field Imager snaps cosmic gecko
This image shows the bright star cluster NGC 6520 and its neighbor, the strange gecko-shaped dark cloud Barnard 86. This cosmic pair is set against millions of glowing stars from the brightest part of the Milky Way.
February 13, 2013
Mosaic of the moon’s north pole
A mosaic of the moon's north pole composed of nearly 1,000 images taken over a one-month period during the moon's northern summer.
February 13, 2013
Middle East river basin has lost Dead Sea-sized quantity of water
Already strained by water scarcity and political tensions, the arid Middle East along the Tigris and Euphrates rivers is losing critical water reserves at a rapid pace, from Turkey upstream to Syria, Iran and Iraq below.
February 12, 2013
Spotting the invisible cracks in wind turbines
A new approach is available for real-time monitoring of the structural health of wind turbine components during exposure to turbulence's.
February 12, 2013
Engineers mimic how peacocks do color for screen displays
Engineers trying to mimic the peacocks’ color mechanism for screens have locked in structural color, which is made with texture rather than chemicals.
February 12, 2013
Best pics from EarthSky Facebook friends during 2012 Backyard Bird Count
During the 2012 Backyard Backyard Bird Count, some great bird pics from EarthSky Facebook friends.
February 12, 2013
