Exercise can tone and improve most parts of your body, but what does exercise do to your brain? And does it help your mental ...

NASA astronauts Kayla Barron and Raja Chari describe how nonverbal communication in employed on the International Space ...

The shutdown became one of the three longest in U.S. history on Friday, with lawmakers indicating they believe it will drag on and few signs emerging of progress toward reopening the government.

It comes amid a government shutdown and concerns that the United States is sliding toward authoritarianism.