Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Some periods in Earth history are so different from our own that they may as well belong to another planet. Many people are ...

Madonna leads the holiday week's batch of new music releases with "Confessions II," a sequel to her 2005 dance floor album.

KENNEDY SPACE CENTER — After completing its 16th and final test of generating oxygen in the mostly carbon dioxide atmosphere of Mars, MOXIE will leave a legacy for its bigger future descendants, says ...