Throughout the follicular phase, a single "dominant follicle" develops faster than the rest. This follicle (a fluid-filled sac in your ovary) then releases more estrogen into the body in ...

How could such a tiny piece of matter have mattered so much? After all, as Mr. Tonelli suggests in the subtitle to his book, matter is a “magnificent illusion.” Mr. Tonelli bookends “Matter ...

The cease-fire deal reached Wednesday between Israel and Hamas is the first step in a process that could see the release of all hostages from the Gaza Strip and the withdrawal of the Israeli military.

"It marks an exciting step forward in our understanding of dark matter and the dynamics of the Milky Way." A perplexing "break" in a stream of stars around the Milky Way could be the result of ...