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Sunday, May 1, 2011 12:03 AM PDT

Today's Science News: NASA to know Sunday whether shuttle can fly Monday Scientists investigate twisters like detectives BYU researchers hope twins unlock AIDS mysteries NWS: NE Mississippi tornado was highest-rated EF-5 Ancient Humans Were Mostly Right-Handed, Too Berkshire shareholders reject emissions goals Obama keeps up push to end gas, oil tax breaks Past Missions of the Space Shuttle Endeavour How a stem-cell transplant altered 2 lives Animal Rights: Saving Chinese Dogs From the Cooking Pot Environmental group to sue feds over SoCal frog The nation's weather NASA Delays Last Launch of Shuttle Endeavour Due to Malfunction Stem cell research: Court gives Obama a victory, but policy still on trial Obama Administration Responsible for Record Gas Prices Tornado-struck US communities face daunting recovery NASA to know Sunday whether shuttle can fly Monday Sat, 30 Apr 2011 02:32 pm PDT AP - Engineers should know Sunday whether Endeavour's six-man crew and their families — including wounded Rep. Gabrielle Giffords — need to stick around for a Monday launch attempt or come back sometime around Mother's Day. Full Story Top Scientists investigate twisters like detectives Fri, 29 Apr 2011 08:44 pm PDT AP - Weather scientists are retracing the footprints of this week's monstrous tornadoes the way detectives would investigate a crime scene: talking to witnesses, watching surveillance video and even taking the measurements of the trees ripped from the ground. Full Story Top BYU researchers hope twins unlock AIDS mysteries Sat, 30 Apr 2011 01:25 pm PDT AP - Researchers at Brigham Young University are trying to unlock some of the mysteries surrounding the virus that causes AIDS with a trio of studies addressing unusual cases involving a set of twins, a failed vaccine and a protein "stop sign." Full Story Top NWS: NE Mississippi tornado was highest-rated EF-5 Sat, 30 Apr 2011 01:49 am PDT AP - At least one of the massive tornadoes that killed hundreds across the South this week was a devastating EF-5 storm, according to an analysis Friday by the National Weather Service, which suspects several others also were the worst of the worst. Full Story Top Ancient Humans Were Mostly Right-Handed, Too Sat, 30 Apr 2011 07:55 am PDT LiveScience.com - Humanity's right-hand dominance might be more than 500,000 years old, new research indicates. The trait of right-handedness is commonly believed to be a sign of the development of another uniquely human trait -- language. Full Story Top Berkshire shareholders reject emissions goals Sat, 30 Apr 2011 02:25 pm PDT AP - Berkshire Hathaway shareholders reject a measure that would have required the company's utilities to set goals for reducing greenhouse gas emissions. Full Story Top Obama keeps up push to end gas, oil tax breaks Sat, 30 Apr 2011 01:33 pm PDT AP - President Barack Obama says oil companies are profiting from rising pump prices and he wants Congress to end $4 billion in annual tax breaks for the oil and gas industry. Full Story Top Past Missions of the Space Shuttle Endeavour Sat, 30 Apr 2011 10:19 am PDT ContributorNetwork - Currently the space shuttle Endeavour is scheduled to launch on Monday on the STS-134 mission, the last of the newest space shuttle in the fleet. The history of Endeavour is one of great accomplishment in space flight. Full Story Top How a stem-cell transplant altered 2 lives Sat, 30 Apr 2011 10:13 am PDT AP - The meeting between the 7-year-old boy and the 31-year-old man began awkwardly, as meetings of strangers often do. But then young Jacob Kowalik sized up the adult, and began to drop his guard. Full Story Top Animal Rights: Saving Chinese Dogs From the Cooking Pot Sat, 23 Apr 2011 07:17 pm PDT The Daily Beast - In China, where stewed dog appears on restaurant menus regularly, being an animal-rights activist can be a risky proposition. Full Story Top Environmental group to sue feds over SoCal frog Sat, 30 Apr 2011 12:25 pm PDT AP - An environmental group says it plans to file a lawsuit against the U.S. Fish and Wildlife Service on allegations that the agency failed to develop a recovery plan for the endangered Southern California mountain yellow-legged frog. Full Story Top The nation's weather Sat, 30 Apr 2011 01:43 am PDT AP - A low pressure system was bringing more rain to the Northern Plains and Upper Midwest on Saturday, while the East Coast remained dry and sunny. Full Story Top NASA Delays Last Launch of Shuttle Endeavour Due to Malfunction Fri, 29 Apr 2011 05:15 pm PDT SPACE.com - CAPE CANAVERAL, Fla. – NASA called off its attempt to launch the final voyage of the space shuttle Endeavour today (April 29) because of a malfunction in one of the spacecraft's critical power units. Full Story Top Stem cell research: Court gives Obama a victory, but policy still on trial Fri, 29 Apr 2011 06:07 pm PDT The Christian Science Monitor - A divided federal appeals court handed the Obama administration a significant victory on Friday when it reversed a judge’s ruling that sought to block government funding of human embryonic stem cell research. Full Story Top Obama Administration Responsible for Record Gas Prices Sat, 30 Apr 2011 10:19 am PDT ContributorNetwork - COMMENTARY | The oil industry is enjoying record profits as the price for a barrel of oil soars to more than $110. Chevron posted its profit numbers for the first quarter. The numbers were tough to stomach. Chevron reported earnings of $6.2 billion ($3.09 per share -- diluted) for the first quarter 2011, compared with $4.6 billion ($2.27 per share -- diluted) in the 2010 first quarter. Full Story Top Tornado-struck US communities face daunting recovery Sat, 30 Apr 2011 08:48 pm PDT AFP - Survivors of powerful tornadoes that swept the US south this week began the monumental task of clearing away debris from a disaster that has claimed nearly 350 lives. Full Story Top

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