Rebates to cut price of $60 LED bulb

(AP) -- How much would you pay for an amazing, state-of-the-art light bulb? Shoppers will be asking themselves that very question at Home Depot and other outlets starting Sunday - Earth Day - when the bulb that won a $10 ...

How long is a day on Earth?

I'm going to ask you how long a day is on Earth, and you're going to get the haunting suspicion that this is a trap. Your instincts are right, it's a trap! The answer may surprise you.

Winter solstice: The astronomy of Christmas

From the Neolithic to present times, the amount of sunlight we see in a day has had a profound impact on human culture. We are fast approaching the winter solstice for the Northern hemisphere, which takes place on December ...

Earth Day Celebrates Green Way Of Life

The 40-year anniversary of Earth Day is sparking a renewed commitment to protecting natural resources. Across the country people recognize there are successes to laud, but also new challenges to confront.

Moynihan, as Nixon aide, warned of global warming

(AP) -- Documents released Friday by the Nixon Presidential Library show members of President Richard Nixon's inner circle discussing the possibilities of global warming more than 30 years ago.

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