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The Associated Press
AP Top Science News At 1 a.m. EDT

Human fetal tissue long used for variety of medical studies
AP Photo
NEW YORK (AP) -- Controversy over Planned Parenthood's supplying fetal tissue for research has focused attention on a little-discussed aspect of science....

Spaceship pilot describes harrowing free fall after breakup
WASHINGTON (AP) -- Free-falling miles above the desert, his test spaceship ripped to pieces and the frigid air hard to breathe, pilot Peter Siebold struggled through crippling injuries to turn on his oxygen and just to stay conscious....

French archaeology students find 560,000-year-old tooth
AP Photo
PARIS (AP) -- Two students have found a human tooth from about 560,000 years ago in a famous prehistoric cave in southwestern France, a discovery praised by archaeologists as the oldest human body part ever discovered in the country and being rare from that period in Europe....

Critically endangered northern white rhino dies at Czech zoo
PRAGUE (AP) -- One of the last five northern white rhinoceros left in the world has died....

Scientists worry about arms race in artificial intelligence
LONDON (AP) -- Scientists and tech experts - including professor Stephen Hawking and Apple co-founder Steve Wozniak - warned Tuesday of a global arms race with weapons using artificial intelligence....

Planned US ivory rules not fazing California Chinatown shops
SAN FRANCISCO (AP) -- Ivory dealers in San Francisco's Chinatown stood in their shop doors next to windows full of carved ivory tusks and trinkets, unfazed by proposed federal rules that the White House says go as far as possible to ban the U.S. trade of ivory from the world's endangered elephants....

US expects to pay farmers $191 million for birds lost to flu
DES MOINES, Iowa (AP) -- The U.S. government expects to spend $191 million to pay chicken and turkey farmers for birds lost to avian flu, Agriculture Secretary Tom Vilsack said Tuesday as he called for Congress to consider a disaster program for poultry producers similar to that for other livestock farmers....

2 injection wells shut down after Oklahoma quakes
OKLAHOMA CITY (AP) -- Oil and gas operators shut down two wastewater injection wells in northern Oklahoma on Tuesday and reduced operations at a third after several earthquakes centered in the town of Crescent rattled the state....

Panel scales back new oil rules for North Dakota reservation
BISMARCK, N.D. (AP) -- Tribal leaders from a prolific portion of North Dakota's oil-rich Fort Berthold Reservation are scaling back proposed drilling regulations that industry officials warned could slow crude production....

Oklahoma day care closes after reports of sunburned children
VINITA, Okla. (AP) -- A day care center in northeast Oklahoma shut its doors Tuesday after a mother reported her two young sons were severely sunburned during an outing to a local water park....