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.
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.
Scientists led by Scripps Institution of Oceanography found forests might be taking up more atmospheric CO2 during photosynthesis than previously thought.
Two tornadoes hit parts of South Africa on October 2, 2011. At least 150 people were injured and one person dead in Duduza and Ficksburg, South Africa.