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  1. German Rolf-Dieter Heuer, right, Director General of CERN, and Steve Myers, left, CERN's Director for Accelerators and Technology, seen, during a press conference on the LHC (Large Hadron Collider) restart at CERN (the European particle physics laboratory) in Meyrin, near Geneva, Switzerland, Monday, Nov. 23, 2009. Scientists turned on the Large Hadron Collider on Friday night, Nov. 20, 2009, for the first time since the machine suffered a failure more than a year ago and had to be shut down shortly after the start. (AP Photo/Keystone, Laurent Gillieron)
    Big Bang atom smasher records first proton hits AP - Mon Nov 23, 6:26 PM ET

    GENEVA - The world's largest atom smasher made another leap forward Monday by circulating beams of protons in opposite directions at the same time and causing the first particle collisions in the $10 billion machine after more than a year of repairs, organizers said.

  2. This undated photo released by Census of Marine Life and the Woods Hole Oceanographic Institution shows a transparent sea cucumber, Enypniastes, creeping forward on its many tentacles at about 2 cm per minute while sweeping detritus-rich sediment into its mouth at 2,750 meters in the Northern Gulf of Mexico. Thousands of marine species eke out an existence in the ocean's pitch-black depths by feeding on the snowlike decaying matter that cascades down, and even sunken whale bones, according to a report released Sunday, Nov. 22, 2009. (AP Photo/Larry Madin) NO SALES, MANDATORY CREDIT, EDITORIAL USE ONLY
    Thousands of strange creatures found deep in ocean AP - Sun Nov 22, 3:51 PM ET

    NEW ORLEANS - 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.

  3. In this image made from video and released by NASA, astronaut Robert Satcher Jr., top, and astronaut Randolph Bresnik are seen working on the International Space Station, Monday, Nov. 23, 2009. The pair of astronauts stepped out on the third and final spacewalk of their shuttle mission Monday, helping to install an enormous oxygen tank at the International Space Station. Atlantis and its crew of seven will depart the space station Wednesday. (AP Photo/NASA)
    Astronauts take spacewalk No. 3 after suit snag AP - Mon Nov 23, 5:05 PM ET

    CAPE CANAVERAL, Fla. - A pair of astronauts zipped through the third and final spacewalk of their mission Monday, helping to install a 1,200-pound oxygen tank at the International Space Station and accomplishing everything else on their list.

  4. Why Kids Ask Why LiveScience.com - Mon Nov 23, 11:46 AM ET

    A child's never-ending "why's" aren't meant to exasperate parents, scientists say. Rather, the kiddy queries are genuine attempts at getting at the truth, and tots respond better to some answers than others.

  5. This NASA Hubble Space Telescope image shows Mars in 2005. A new detailed map of Mars shows what was likely a vast ocean in the north and valleys around the equator, suggesting that the planet once had a humid, rainy climate, according to research published Monday.(AFP/NASA-HO/File)
    New Map Bolsters Case for Ancient Ocean on Mars SPACE.com - Mon Nov 23, 5:30 PM ET

    Several lines of evidence point to the possibility of a past ocean on Mars, from apparent ancient shorelines to chemicals in the soil.

  6. Shocking Treatment Helps Erectile Dysfunction LiveScience.com - Mon Nov 23, 8:36 AM ET

    If you experience impotence, instead of a little blue pill maybe you want to apply shockwaves to your privates instead.

  7. File photo shows people evacuating a village close to Havana following Hurrican Ike. Flooding in the world's major port cities caused by melting icecaps could cause up to 28 trillion dollars (18 trillion euros) in damage in 2050, environmental group WWF said in a report Monday.(AFP/File/Adalberto Roque)
    Melting icecaps to damage major port cities: WWF AFP - Mon Nov 23, 1:56 AM ET

    GENEVA (AFP) - Flooding in the world's major port cities caused by melting icecaps could cause up to 28 trillion dollars (18 trillion euros) in damage in 2050, environmental group WWF said in a report Monday.

  8. Plan for Human Mission to Asteroid Gains Speed SPACE.com - Mon Nov 23, 3:30 PM ET

    BOULDER, Colo. – Call it Operation: Plymouth Rock. A plan to send a crew of astronauts to an asteroid is gaining momentum, both within NASA and industry circles.

  9. Texting a Pain in the Neck, Study Suggests LiveScience.com - Mon Nov 16, 12:02 PM ET

    Texting long messages can be a pain in the neck - literally.

  10. FILE - This March 17, 2009 file photo shows the cooling towers of Three Mile Island's Unit 1 Nuclear Power Plant reflected in a parking lot puddle in Middletown, Pa. A small amount of radiation was detected in a reactor building at the Three Mile Island nuclear power plant in central Pennsylvania Saturday afternoon, 21, 2009. (AP Photo/Carolyn Kaster)
    Pipe-cutting led to radiation at Pa. nuke plant AP - Mon Nov 23, 2:48 PM ET

    HARRISBURG, Pa. - Radioactive dust unexpectedly blew out of a pipe being cut by workers during weekend maintenance at the Three Mile Island nuclear power plant, and officials on Monday were trying to determine exactly how and why it happened.

  11. Strong Leonid Meteor Shower Peaks Early Tuesday Morning SPACE.com - Mon Nov 16, 12:30 PM ET

    One of the best annual meteor showers will peak in the pre-dawn hours Tuesday, and for some skywatchers the show could be quite impressive.

  12. Warming's impacts sped up, worsened since Kyoto AP - Mon Nov 23, 12:00 AM ET

    WASHINGTON - 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.

  13. A handout photo from the Census of Marine Life shows a "bush" of a tube worm in the Gulf of Mexico. Thousands of animal species thrive in the ocean depths beyond the reach of sunlight, between 200 to 5,000 meters below the surface, an international team of scientists has reported after nearly 10 years of research.(AFP/HO/File/CENSUS OF MARINE LIFE)
    Murky ocean depths hide abundance of life AFP - Mon Nov 23, 6:09 AM ET

    WASHINGTON (AFP) - Thousands of animal species thrive in the ocean depths beyond the reach of sunlight, between 200 to 5,000 meters below the surface, an international team of scientists has reported after nearly 10 years of research.

  14. Really Rare Rhinos Found by Dung-Sniffing Dogs LiveScience.com - Sat Nov 21, 8:05 AM ET

    We all know dogs like to smell just about everything, including other animals' poo. Now scientists have figured out how to put the canines' odd pastimes to work to help sniff out the dung of endangered rhinos in Vietnam.

  15. It's a Girl! Astronaut's Daughter Born While He's in Space SPACE.com - Sun Nov 22, 8:16 PM ET

    Talk about one proud papa. Astronaut Randy Bresnik beamed with joy Sunday after hearing news of the arrival of his new baby daughter, who was born on Earth while he orbited above on the International Space Station.

  16. US President Barack Obama, seen here on November 14, will decide "in the coming days" whether to attend a United Nations climate change summit in Copenhagen in December, a senior administration official said Monday.(AFP/File/Kazuhiro Nogi)
    U.S. to bring emissions cut target to Copenhagen talks Reuters - Mon Nov 23, 3:42 PM ET

    WASHINGTON (Reuters) - The United States will propose an emissions reduction target at U.N. climate change talks in Copenhagen in December with an eye toward winning support from U.S. lawmakers who must agree to put it into law.

  17. Teensy Chameleon Is New Species LiveScience.com - Mon Nov 23, 6:46 PM ET

    A tiny chameleon species with a scaly horn atop its snout and blue dots on its limbs has been discovered in Tanzanian forests.

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