* Estimates for peopling of Americas getting earlier: Humans appear to have first entered the Americas some 22,000 years ago, according to some archaeologists....
* Pollution may make birds change their tune: Nothing like a birdsong to remind you of nature's glory, right? Maybe not quite, according to rather creepy new...
* Robot arms race seen underway: Proponents of robot weapons say they could keep soldiers out of harm's way. Critics say the machines raise troubling...
* Moon systems, not planets, may be place to find life: Alien life might be both easier and more interesting to discover through a new strategy, a study...
* Communing with nature less and less: People are losing interest in the outdoors, and it bodes ill for health and the environment, researchers warn. ...
* Get lazy, age faster: People who are physically active in their spare time seem biologically younger than their couch-bound peers, researchers say. ...
* Claim of alien cells in rain may fit historical accounts: study A controversial theory concerning recent strange, red rains hasn't died. In fact, things...
* Mystery world a merged planet?: A strange object "needs a strange explanation," an astronomer says. http://www.world-science.net/othernews/080110_merger.htm ...
NOTE: Apologies for the mistaken subject line in the previous email. --The Editors. * Shrinking helium reserves may threaten more than kids' play: The element...
* Famed wreck reported found, "pristine";: Remains of a ship linked to the scandalous 17th century "pirate," Capt. Kidd., could shed light on a pivotal era,...
* How the mind may work like Google: Thinking and using a Web search engine might seem to be very different activities. But a study has found they may draw on...
* First reversal of aging in an organ claimed: A short-term success in rejuvenating the skin of mice points the way to future progress against aging,...
* Breakthrough may let scientists make stem cells on demand: Researchers say they appear to have success- fully turned ordinary human cells into powerful stem...
* Competition drives forward robo-car technology: A university team won $2 million for its entry in a government-sponsored competition for self-driving cars. ...
* Genes affecting generosity may be found: One gene underlying altruism is an evolutionarily ancient strip of DNA also found in rodents, a study indicates. ...
EDITORS' NOTE: Readers have voiced passionate opinions on last week's article on the furor over Nobel Prize winner James Watson. Take our new poll on the...
* Trip to beach a milestone in human evolution: study The discovery of coastal life may have put our forbears on the road to modernity, researchers say. ...
* Other universes may be detectable, published study claims: If there are other universes, then one or more of them might leave a mark on ours, researchers...
* Pain relief without the numbness: Scientists say they finally can knock out pain without disabling other sensations -- but you might need a tolerance for hot...
* Finding said to show "race isn't real" scrapped: Famed geneticist Craig Venter withdrew his claim that all people have 99.9 percent identical DNA, but he...
