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Editors of EarthSky
Amateur astronomers see Comet ISON
"Certainly we would love it to be a couple of magnitudes brighter right now, but it's doing just fine. I'd say it's still on course to become a very eye-catching object." - Karl Battams, Naval Research Lab in Washington, D.C.
September 24, 2013
Astronomers discover densest galaxy ever
Imagine the distance between the sun and nearest star system, Alpha Centauri. That’s a distance of about 4 light-years. Now, imagine as many as 10,000 of our suns crammed into that relatively small space.
September 24, 2013
Amazing photo of eagle vs. deer
An amazing photo from the Russian Far East shows predation of sika deer by a golden eagle.
September 24, 2013
Chasing the black holes of the ocean
According to researchers from ETH Zurich and the University of Miami, some of the largest ocean eddies on Earth are mathematically equivalent to the mysterious black holes of space.
September 23, 2013
A fast fish with a huge impact
In the Danube River, scientists have been observing a fish species conquering a new habitat and creating a totally new ecosystem while many plants and animals are being run off due to globalization.
September 23, 2013
Why does the sun rise due east and set due west at the equinox?
At the equinox, the sun is on the celestial equator. And the celestial equator intersects all of our horizons at points due east and due west.
September 22, 2013
Wired microbes turn sewage into electricity
A new way to generate electricity from sewage uses naturally occurring “wired microbes” as mini power plants to produce electricity as they digest plant and animal waste.
September 20, 2013
New rat genus discovered in the birthplace of the theory of evolution
A prominent tuft of spiny hair on the back, a white tail tip and three pairs of teats represent the unique set of characteristics describing a new genus of rat which has been discovered in the Moluccan province of Indonesia.
September 20, 2013
As ocean warms, Antarctica’s Pine Island Glacier thaws
“I think it is fair to say that the largest potential sea level rise signal in the next century is going to come from this area.” - Martin Truffer
September 19, 2013
What is Earth’s habitable lifetime?
Habitable conditions on Earth will be possible for at least another 1.75 billion years, according to astrobiologists at the University of East Anglia.
September 19, 2013
