Tipping points in our climate predictions are both wildly dramatic and wildly uncertain. Can mathematicians make them useful?

Experts share their favorite tips, including exercises, for making this phase of your gait as efficient as possible.

The sun has become increasingly active since 2008, a new NASA study shows. Solar activity is known to fluctuate in cycles of 11 years, but there are longer-term variations that can last decades. Case ...

McGraw Hill (NYSE: MH), a leading global provider of education solutions for preK-12, higher education and professional ...

Two black holes merged together 2.4 billion light years away from Earth, and scientists have just figured out how fast the newborn ricocheted, and in which direction.