Puzzling over pre-humans: Science editor Alan Boyle's Weblog: Decades after a 3.2-million-year-old "almost human" named Lucy became a star, the origin of our species still poses mysteries worthy of a crime show. ›13:11
Video: Justices to decide right to sue: Oct. 5: The U.S. Supreme Court begins its new term Monday, and a number of important cases are already on the docket. NBC's Pete Williams reports.(Nightly News) ›23:14 5 Oct, Sun
Video: A new line of attacks from Palin: Oct. 5: Gov. Sarah Palin is criticizing Sen. Obama for "palling around" with Bill Ayers, a former '60s radical who worked on education projects with Obama. NBC's Savannah Guthrie reports.(Nightly News) ›22:51 5 Oct, Sun
Vatican sees the light of solar power: The first of a planned 2,400 solar panels have been installed on top of the papal audience hall at Vatican City. ›20:32 29 Sep, Mon
Box office goes to dogs: Chihuahua wins: This week, the box office has truly gone to the dogs. "Beverly Hills Chihuahua" took the number one spot, while other new releases had fair to poor first weekends. ›20:10 5 Oct, Sun
Fewer 'sworn virgins' in Albania: In this strongly patriarchal society where for centuries women had virtually no standing, sworn virgins enjoyed the same rights and respect as men. ›03:20
California to help climate by curbing sprawl: California Gov. Arnold Schwarzenegger signed legislation that attempts to ease greenhouse gas emissions by giving priority to transportation projects that limit commutes and curb urban sprawl. ›19:26 1 Oct, Wed
Last refuge for life remained after extinction: What is now Ellsmere Island in the Canadian Arctic archipelago was once a last refuge for life during the Earth's worst extinction event 250 million years ago, say scientists who have discovered a surprising trove of ancient fossils there. ›23:39 3 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
Edie's husband is already a 'Desperate' man: "Desperate Housewives" jumped right into the Edie's-new-husband-is-a-psycho plot in its second episode. Residents of Wisteria Lane, keep an eye on your pets. By Gael Fashingbauer Cooper ›01:55
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
Unassuming algae eyed as green fuel: Experts say that within a decade it should be possible to efficiently process algae for fuel, helping to ease the world's energy needs and responding to global warming. ›08:53 28 Sep, Sun
Test Pattern: Trace family names, identify accents: How about five fun links to start off your week? Trace your family surnames, test your color IQ, play dolphin Olympics, check out where album-cover photos were taken, and guess some world accents. ›13:46
Study: Tuna travel across the Atlantic: Bluefin tuna from both sides of the Atlantic get together as juveniles, a discovery that could affect how the tuna fishery is managed. ›22:41 2 Oct, Thu
Video: More kids walk to school: Oct. 5: NBC's Rehema Ellis reports on a bold step that's healthy for kids and school budgets.(Nightly News) ›23:52 5 Oct, Sun
Cool Cars We Miss: Gone but not forgottena shortlist of cars we loved and still miss. ›07:00 18 Oct, Thu
First Drive: 2008 Cadillac CTS: With style in spades, Cadillac's second-generation sport sedan adds performance and refinement. ›07:00 15 Oct, Mon
The 10 best hotels in the country: There are hundreds of great hotels in the U.S., so why not stay in one of the top 10? ›17:12 26 Sep, Fri
Frozen chicken linked to salmonella in 12 states: The government is urging consumers to thoroughly cook frozen chicken dinners after 32 people in 12 states were sickened with salmonella poisoning. ›17:03 5 Oct, Sun
Bear gets caught with hand in honey jar: Far from the Hundred Acre Wood, a Montana grizzly bear was relocated for soothing the 'rumbly in his tumbly' by stealing honey from commercial hives. ›16:23 29 Sep, Mon
Slide show: The week in celebrity sightings: Gere and Lane toast to new flick, Bill Murray goes underground, Buffy meets a bottlenose dolphin ›11:23 30 Sep, Tue