... Today is the autumnal equinox -- should eggs be able to stand on end? ... Pictured above, Dr. Phil Plait (Sonoma St. Opportunity Rockets Toward Mars . ... Next stop: Mars. ... Inside the Eagle Nebula . ... These three views of Saturn were recorded by the Hubble Space Telescope on March 7th of this year, as the southern hemisphere of the solar system's most gorgeous planet reached its maximum 27 degree tilt toward Earth. ... Hurricane Isabel Approaches . ... Where will Hurricane Isabel go? ...