Science A cloud weighs as much as 300 cars so why doesn't it fall on our heads? David Pescovitz

art Now even clouds are vaping David Pescovitz

Kids This timelapse of clouds in a valley looks like the ocean Andrea James

Kids Stormchaser films a new cloud type during spectacular sunset Andrea James

clouds Mesmerizing video of newly categorized type of cloud David Pescovitz

photography Alessandro Puccinelli's 'Intersections,' where violent seas and skies collide Andrea James

australia Unusual cloud seen in Australia Rob Beschizza

Weird Incredibly strange spherical cloud spotted in Japan David Pescovitz

art On the once and future history of clouds Cory Doctorow

clouds Trippy 'roll cloud' hovers over Lake Michigan Xeni Jardin

Science Video of one year on Earth, from one million miles away David Pescovitz

weather Strange and beautiful clip of a huge "shelf cloud" David Pescovitz

weather Incredibly strange and sublime cloud portal with a rainbow inside David Pescovitz

b-side Awe-inspiring clouds chased and filmed Rob Beschizza

Science Possible sign of life on Venus David Pescovitz

History Aviation museums' "most wanted list" of cool aerospace artifacts lost to history David Pescovitz

art Computer finds faces in grains of sand David Pescovitz

Science Tropical Storm Fay imaged by NASA's Atmospheric Infrared Sounder (AIRS) Xeni Jardin

sports Owen Morse sets hang gliding world record for piloting 222.22 miles over California's Owens Valley Xeni Jardin