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  Astronauts take spacewalk No. 3 after suit snag

  A pair of astronauts stepped out on the third and final spacewalk of their mission Monday to take care of some odd jobs at the International Space station.

• Grand Canyon to change 'unfair' permit system

  Getting one of the roughly 11,500 permits granted each year to backpack overnight in the Grand Canyon has become so competitive and "unfair" that managers at the national park have decided to change the system.

• Warming's impacts sped up, worsened since Kyoto

  Since the 1997 international accord to fight global warming, climate change has worsened and accelerated — beyond some of the grimmest of warnings made back then.

• Big Bang atom smasher sends beams in 2 directions

  Scientists working on the world's largest atom smasher say they are now circulating beams of protons in opposite directions at the same time in the $10 billion machine after more than a year of repairs.

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  Denmark: 65 world leaders for UN climate summit

  Sixty-five world leaders have said they will attend the Copenhagen climate summit in December, and several more have responded positively to invitations, Danish officials said Sunday.

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  Rare Charles Darwin book found on toilet bookshelf

  An auction house says it is selling a rare first edition of Charles Darwin's "On the Origin of Species" found in a family's guest lavatory in southern England.

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  Ukraine's `hot air' bedevils global climate deal

  Vladimir Gapor is a plumber by trade, but now he's a scavenger, prying bits of scrap steel from the ruins of his old factory and selling them for a pittance.

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  Researcher: Faint writing seen on Shroud of Turin

  A Vatican researcher has rekindled the age-old debate over the Shroud of Turin, saying that faint writing on the linen proves it was the burial cloth of Jesus. Experts say the historian may be reading too much into the markings, and they stand by carbon-dating that points to the shroud being a medival forgery.

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  Thousands of strange creatures found deep in ocean

  The creatures living in the depths of the ocean are as weird and outlandish as the creations in a Dr. Seuss book: tentacled transparent sea cucumbers, primitive "dumbos" that flap ear-like fins, and tubeworms that feed on oil deposits.

• Hackers leak e-mails, stoke climate debate

  Computer hackers have broken into a server at a well-respected climate change research center in Britain and posted hundreds of private e-mails and documents online — stoking debate over whether some scientists have overstated the case for man-made climate change.

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  Dark ocean depths home to exotic, unknown life

  The permanent darkness of the ocean depths is home to a far greater range of animals, from luminous jellyfish to tubeworms that live off oil seeping from the seabed, than previously thought, scientists said on Sunday.

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  "Big Bang" experiment advancing fast

  After a year's delay, scientists at the world's biggest accelerator have restarted an experiment to recreate "Big Bang" conditions that had sparked suggestions the earth would be sucked in by millions of black holes.

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  Houston, we have a baby

  Shuttle Atlantis astronaut Randy Bresnik awoke early on Sunday to a much-anticipated call that his new daughter had been born.

• Soviet Union's non-Communist astronaut dies age 83

  The Soviet Union's only non-Communist astronaut, Konstantin Feoktistov, has died at the age of 83, Russia's space agency said on Sunday.

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  Delayed spacewalk ends successfully

  NASA astronauts completed a spacewalk on Saturday at the International Space Station that had been delayed after a false alarm woke the crews of the station and the visiting space shuttle Atlantis.

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  Art collector finds Galileo's lost tooth, fingers

  An art collector has found a tooth, thumb and finger of the renowned Italian scientist Galileo Galilei who died in the 17th century, Florence's History of Science museum said on Friday.

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  Italy collector finds Galileo's lost tooth, fingers

  An art collector has found a tooth, thumb and finger of the renowned Italian scientist Galileo Galilei who died in the 17th century, Florence's History of Science museum announced on Friday.

• NASA Awards $350,000 to Winning Astronaut Glove Designers

  NASA's Centennial Challenges program awarded $350,000 this week to a pair of designers who developed concepts for more flexible space gloves that could make it easier for astronauts to perform tasks.

• NASA Pushes Social Media Experience to New Heights

  NASA launched a social media experience at the Kennedy Space Center in Florida that quickly turned into an unprecedented world-wide event as more than 100 Twitter users got a unique look inside Ameria's space program and front row seats to the Nov.

• Science Magazines Honor Cutting-Edge NASA Programs

  NASA's revolutionary planet-hunting Kepler space telescope has been honored with the 2009 Best of What's New Grand Award from Popular Science Magazine and a 2009 Breakthrough Award from Popular Mechaics Magazine.

• Planet 51 Star Brings NASA's Message of Exploration Down to Earth

  Actor Dwayne Johnson, usually known for his action and comedic film roles, takes to the stars as an astronaut in a new animated feature that brings important messages about the importance of space exloration and education to those of us here on Earth.

• Planet 51 PSA Campaign Brings NASA's Message of Exploration Down to Earth

  Broadcast-quality digital public service announcements are available for download from NASA featuring actor Dwayne Johnson, star of the new film "Planet 51," discussing the importance of space explortion, diversity and education.

• Space Station, Space Shuttle Joint Crew News Conference Tuesday

  The 12 crew members aboard space shuttle Atlantis and the International Space Station will hold a news conference at 7:13 a.m. CST on Tuesday, Nov. 24.

• Space Shuttle Pilot Set to Talk With Tennessee Students from Orbit

  Congressman Bart Gordon and Tennessee Technological University in Cookeville will host a live conversation between more than 120 students and NASA astronaut Barry E. Wilmore on Sunday, Nov. 22.

• NASA Provides Venerable Hubble Hardware to Smithsonian

  Two key instruments from NASA's Hubble Space Telescope have a new home in the Smithsonian's National Air and Space Museum in Washington.

• NASA and Microsoft Allow Earthlings to Become Martians

  NASA and Microsoft Corp. of Redmond, Wash., have collaborated to create a Web site where Internet users can have fun while advancing their knowledge of Mars.

• NASA's Wise Gets Ready to Survey the Whole Sky

  NASA'S Wide-field Infrared Survey Explorer, or Wise, is chilled out, sporting a sunshade and getting ready to roll.

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