Missy Cooper is Sheldon’s twin sister and is one of the memorable characters of The Big Bang Theory, especially after the release of The Young Sheldon. Her appearance in the show was limited, but it ...

Here’s how it works. Space can be a wondrous place, and we've got the pictures to prove it! Take a look at our favorite space pictures here, and if you're wondering what happened to today in ...

Fighting in and around the city has escalated despite calls from the UN Security Council for the rebels to withdraw.

Missy Ryan writes about national security and defense for The Washington Post. She joined The Post in 2014 and has written about the Pentagon and the State Department. She has reported from Iraq ...