
. Site Navigation Blog Topics The Dead Sea Scrolls Rising waters in Minnesota Mayan calendar The Human Spark Swine Flu Minnesota geology Archive Features Object of the Month Scientist on the Spot Changing Seasons Browse Images Browse Tags Links Community Latest comments Contribute Buzz points Mentors Scientists Teachers Community Guidelines Member Gallery Exhibit Buzz kiosks About Where is Science Buzz Awards Credits Copyright Information Contact Us Privacy Help Be part of the buzz . Login Register Science links Just beautiful . and a little bit scary by Joe on Apr . 25th , 2010 Cumulonimbus Cloud Over Africa : High above the African continent , tall , dense cumulonimbus clouds , meaning column rain in Latin , are the result of atmospheric . instability Courtesy NASA Got this image from