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As Comet ISON sweeps past Mars October 1, most observations will happen
NASA and ESA announced earlier they were readying a flotilla of spacecraft to record the comet's passage near Mars. How much will the U.S. government shutdown interfere? Not much, it seems.
October 1, 2013
Caribou may be indirectly affected by sea-ice loss in the Arctic
"Since plants are emerging earlier in the year, they tend to be older and past their peak nutritional value by the time the hungry caribou arrive to eat them." - Jeffrey Kerby
October 1, 2013
Deadbeat cuckoo finches lay more eggs to deceive host parents
Cuckoo finches con other birds into raising their chicks, confusing prospective foster parents with several look-alike eggs.
October 1, 2013
Greenish Comet ISON on its way
A great shot of Comet ISON, from September 28, by Michael Jaeger
October 1, 2013
Do black holes have hair?
Black holes may be less simple and "clean" than how the most authoritative theoretical model describes them.
September 30, 2013
Cassini spacecraft finds plastic in space
NASA's Cassini spacecraft has detected propylene, a chemical used to make food-storage containers, car bumpers and other consumer products, on Saturn's moon Titan.
September 30, 2013
Citizen science: Help classify plankton in waters off southern California
Can you tell a Cydippid from a Solmaris? You can, with a little training. Scientists could use your help classifying plankton at the Plankton Portal.
September 30, 2013
Catalina Mountain sunrays
Crepuscular rays in Arizona's Santa Catalina mountains by EarthSky Facebook friend Randall Kayfes
September 30, 2013
View from space: Earthquake island before and after
“The island is really just a big pile of mud from the seafloor that got pushed up.” - Bill Barnhart, USGS geologist
September 29, 2013
Video: What will a warming world look like?
NASA has produced a new video that shows what changes in temperature and precipitation can be expected if atmospheric CO2 concentrations continue to rise.
September 29, 2013
