Top headlines:
Parties wage war over voter fraud, intimidation: Republicans say Democrats and their allies are trying to subvert the voter registration system with an avalanche of inaccurate or fraudulent new voter registrations. But Democrats charge Republicans are trying to deter would-be voters. ›18:30 10 Oct, Fri
Deadlines set for polar bear habitat: The federal government will designate "critical habitat" for polar bears off Alaska's coast, a decision that could add restrictions to future offshore petroleum exploration or drilling. ›19:32 7 Oct, Tue
CO2 rise means louder oceans, study finds: Beyond the damage it is expected to inflict upon sensitive marine ecosystems, ocean acidification may also allow sound to travel farther underwater, creating a louder deep sea din. ›19:44 30 Sep, Tue
Officials deny illegally purging voters: Election officials defended their registration procedures after a newspaper reported tens of thousands of eligible voters were removed from rolls or blocked from registering in at least six states. ›00:15 10 Oct, Fri
Video: What's no good for the country is no good for GM: Oct. 10: Both stockholders and car buyers alike are wondering whether General Motors, reeling from a collapse in auto sales and a run on the company's stock, can survive. CNBC's Phil Lebeau reports.(Nightly News) ›22:56 10 Oct, Fri
Quiz: Who will play Tonto in "Lone Ranger film?: Test your red-carpet savvy with our weekly quiz ›13:48 24 Sep, Wed
Scientists confirm shark's virgin birth: In a study reported Friday in the Journal of Fish Biology, scientists said DNA testing proved that a pup carried by a female Atlantic blacktip shark in the Virginia Aquarium & Marine Science Center contained no genetic material from a male. ›05:49 10 Oct, Fri
EarthTalk Q&A: Painkillers, electric bikes: Read answers to readers questions about environmental topics. ›20:53 7 Oct, Tue
N.J. to 'race to the sea' for wind power: New Jersey is powering up an ambitious plan to become a world leader in the use of wind-generated energy. ›19:14 7 Oct, Tue
Dying of a broken heart: Families share stories: After reading an msnbc.com story on the phenomenon of long-time couples who die close together, readers wrote in with their own experiences the love stories of family and friends. ›00:32 10 Oct, Fri
Study: Urban bears arefatter, die earlier: Urban black bears are much heavier and more likely to die violent deaths than their wilder peers, a new study found. And if female, they're more likely to get pregnant at a younger age. ›20:58 30 Sep, Tue
Houston joins L.A. in severe-smog club: Houston has joined Los Angeles to become the second place in the U.S. classified as having a severe smog problem, the Environmental Protection Agency said Thursday. ›00:04 3 Oct, Fri
McCain, Obama offer ideas to aid economy: John McCain and Barack Obama outlined modest steps to counter the faltering economy and plummeting stock market on Friday, fresh evidence of the dominant role of pocketbook issues in their race. ›21:44 10 Oct, Fri
Limit on cold remedies for kids was FDA's idea: When drug makers made an announcement this week that they no longer recommend cold remedies for those under 4, they didn't let on that it was the government's idea. ›01:05
Getting elderly drivers off the road poses challenges: As drivers get older, their driving skills decline. But getting the elderly off the road whether they're aging parents or ourselves is no easy task. Harriet Baskas has some well-mannered advice. ›15:36 9 Oct, Thu
Political impersonators ... good: Throughout history, whenever an individual stepped into the presidential arena, he or she could be reasonably sure that somewhere another individual was copying them for comic effect. ›17:24 9 Oct, Thu
South Africa will sell ivory to Japan, China: The South African government will press ahead with plans to sell just over 51 tons of ivory to China and Japan under a special exemption to the international ban on the trade. ›17:53 9 Oct, Thu
Newsweek: Will there be a 'reverse Bradley effect'?: Six percent of voters say they're less likely to support Obama because he's black. But the interesting thing is that 9 percent of the same electorate--6 percent of whites and 15 percent of non-whites--says that Obama's race makes them more likely to choose him on Election Day. ›18:59 10 Oct, Fri
Body Odd: When you can't find your way home: We all get lost, but how many times have you been unable to locate the bathroom in your own house? Researchers report the first case of an otherwise normal patient who can't find her way around anywhere. ›23:56 9 Oct, Thu
CSIreturns, bids farewell toWarrick: After Warrick dies on the scene, the CSIs work round the clock to find the killer and then take some time to say goodbye. ›02:03 10 Oct, Fri
'Petit Le Mans' adds green competition: Everyone in the field of Saturday's Petit Le Mans will be competing in the first Green Challenge, a competition to highlight fuel efficiency and lower emissions. ›19:38 3 Oct, Fri
la carte pricing not flying with passengers: When we asked msnbc.com readers what they thought of the "unbundling" of airline services, many were displeased. ›15:37 10 Oct, Fri
China implements dairy industry reforms: Alarmed by the growing public outcry and international recalls over its tainted dairy products, Chinas government pledged this week to overhaul the troubled industry by monitoring every link in the supply chain that brings milk from farms to family kitchens. ›19:50 9 Oct, Thu
Experts: 'Losing battle' to save Everglades: A multibillion-dollar effort to restore Florida's Everglades has made little progress amid funding shortfalls and red tape, according to a congressionally mandated report. ›20:21 29 Sep, Mon