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First-ever Arctic ozone hole: How it formed, what it may mean
Scientists first observed an ozone hole over Antarctica in the mid-1980s. But in 2011 - for the first time - an ozone hole opened over the northern Arctic.
October 11, 2011
Uranus knocked sideways by series of small bumps?
Conventional wisdom said a single blow caused Uranus to lie sideways in the plane of the solar system. But maybe the cause was several small bumps instead.
October 10, 2011
Tim Otto Roth on using Hubble data as art
German artist Tim Otto Roth uses green laser light to project Hubble spectra onto a surface. The exhibit is currently on display in Baltimore, Maryland.
October 10, 2011
Exoplanets found in old Hubble data
Using data from 1998, astronomers have found two previously unknown planets orbiting distant suns. How many more exoplanets lie hidden in old data?
October 9, 2011
October 2011 Draconid meteor shower a winner!
Despite a bright moon, many people saw a good display of meteors in the Draconid meteor shower. Good job Canadian astronomer, Paul Wiegert!
October 9, 2011
Triple and quadruple rainbows in 1st-ever photos
We now have the first scientifically accepted photos of triple and quadruple rainbows. For some, it's as if we've captured a picture of a real unicorn.
October 9, 2011
Active weather for the middle of October
Meteorological models see rain ahead for dry Texas and Oklahoma and for soaked Northeast - and maybe tropical storms in Gulf and Caribbean. More active weather coming.
October 9, 2011
Christopher Small on the pattern of cities on Earth’s surface
"Networks of cities connected by rural areas form a pattern that we see all over the world," said Christopher Small. "It’s a spatial pattern, but it’s not a simple geometric pattern."
October 8, 2011
Dramatic Draconid meteor shower for October 8, 2011?
The prediction for October 8 Draconid meteor storm favors all of Europe, North Africa, and the Middle East. A bright moon will interfere.
October 8, 2011
Arctic sea ice reached record lows in 2011
Arctic sea ice losses during 2011 were the second-greatest in the satellite record dating back to 1979, according to an official NSIDC report.
October 7, 2011
