Astronomers have discovered what they say is the most Earth-like planet yet detected — a distant, rocky world that's similar in size to our own and exists in the Goldilocks zone where it's not too hot and not too cold for life.
Herbs and other dietary supplements besides vitamins are the most commonly used type of "complementary medicine" (also called alternative medicine) in the United States, followed by visits to chiropractors, yoga and massage, a new report finds.
The cost of keeping global warming in check is "relatively modest," but only if the world acts quickly to reverse the buildup of heat-trapping gases in the atmosphere, the head of the U.N.'s expert panel on climate change said Sunday.
NASA’s Saturn-orbiting Cassini spacecraft has imaged something peculiar on the outermost edge of the gas giant’s A-ring. A bright knot, or arc, has been spotted, 20 percent brighter than the surrounding ring material and astronomers are interpreting it as a gravitational disturbance caused by a tiny moon.
For most U.S. states east of the Mississippi River, tonight's total lunar eclipse will likely turn out to be a total bust, while in contrast, much of the central and western United States will likely get a fine view of the "blood moon" in all its brilliance.