Fifteen years ago, Pluto was kicked out of the planet club. On August 24, 2006, members of the International Astronomical Union voted in favor of a new definition of what constitutes a planet. What ...

Astronomers are proposing a new, more quantitative definition of what makes a planet. The new definition looks more directly at the object's mass — but it would still leave Pluto out of the running.

If you do research and don’t publish it, is it science? That’s the question at the heart of an ongoing debate on X between entrepreneur Elon Musk and pioneering computer scientist Yann LeCun. Over the ...

Americans should be proud of the colleges and universities whose name recognition extends around the world. The premier ...