ScienceGreat balls of fire seen in US and Japan. Superman? Aliens? Or just meteors? [Videos] Skygazers witnessed green fireballs over the skies of western Japan and the Midwest and southeastern United States. It is unknown what the fireballs were.by Sumit Passary
Science'Rapture cloud' spotted in Australia not a UFO or wormhole: It's a fallstreak holeby Rhodi Lee
ScienceNext century will bring more pollen allergies than ever, thanks to climate changeby James Maynard
ScienceHow did male genitalia evolve? Harvard researchers discover origins of reproductive organsby James Maynard
ScienceHummingbirds aren't the only birds that know how to get aggressive: A look at angry birdsby James Maynard
ScienceHow to train your sea otter: Lone pup rescued, aquarium readies her for the otter lifeby James Maynard
ScienceIs String Theory the basis for quantum mechanics? Here's the answer... in Englishby Aaron Mamiit