Countdown begins for US shuttle Endeavour

Countdown has begun for the final flight of the Endeavour, scheduled to lift off Monday on the American space program's second to last mission to the International Space Station.

US storms have no bearing on hurricane season

Natural disasters and a record number of tornadoes in the southeastern United States should not have any bearing on the severity of the upcoming hurricane season, the director of the National Hurricane Center said Friday.

Canadian bears end long hibernation

Bears in westernmost Canada have begun leaving their dens in search of food after hibernating for the winter, officials said Friday, reminding residents to put away tempting treats to avoid deadly encounters.

Moon's rough 'wrinkles' reveal clues to its past

(PhysOrg.com) -- Written on the moon's weary face are the damages it has endured for the past 4-1/2 billion years. From impact craters to the dark plains of maria left behind by volcanic eruptions, the scars are all that ...

Northwest power surplus may halt wind energy

(AP) -- The manager of most of the electricity in the Pacific Northwest is running such a surplus of power from hydroelectric dams that it put wind farms on notice Friday that they may be shut down as early as this weekend.

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