Violent swings in weather patterns occurred after Earth's climate crossed "tipping points" thousands of years ago, according to a new study of Greenland ice-core data.
Read Greenland Ice Shows Rapid Climate Flips, Study Says (Links)
The longest day of the year falls on Friday's midsummer solstice?unless you live in the Southern Hemisphere. Get the facts on why the solstice occurs and how people have celebrated through the centuries.
Read Summer Solstice Facts: Why It's Early This Year, More (Links)
Hot-pink millipedes, "Michelin Man" plants, and lethal jellyfish are among the new surprising new species in a ranking by the International Institute for Species Exploration.
Read PHOTOS: Top Ten New Species of 2007 Named (Links)
Despite media reports, the isolated tribe recently photographed firing arrows at a plane has been observed and protected for years, insiders say.
Read "Uncontacted" Amazon Tribe Actually Known for Decades (Links)
A fiery cave festival in Spain, an Indian butterfly dance, and a Times Square yogafest -- if previous years are any hint, the 2008 summer solstice should be a day of worldwide rejoicing and revelry.
Read PHOTOS: Summer Solstice Marked With Fire, Magic, Yoga (Links)
A tractor army, a harvest of rifles, Midwest floods, and a fleet of naked bicyclists helped flesh out summer solstice week.
Read WEEK IN PHOTOS: Naked Cyclists, Tractor Army, More (Links)
Four leading Japanese robotic companies have joined forces to outcompete South Korea, which recently announced legislation to develop more robots for common household use.
Read VIDEO: Robot Wars: Japan vs. S. Korea (Links)
Jatropha, a hardy biofuel plant grown in salty soils near the Indian Ocean, may reduce biofuels' competition with food-producing crops, industry officials say.
Read VIDEO: Mozambique's Better Biofuels (Links)
About three thousand squid vessels have suspended operations for two days across Japan due to skyrocketing fuel costs.
Read VIDEO: Japan Squid Industry Halted (Links)
DNA presursors found in a meteorite suggest that life's raw ingredients may have formed in space, and may have been deposited elsewhere in the universe, scientists say.
Read Meteorites Brought DNA "Ancestors" to Earth, Study Says (Links)
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