Even early humans quickly recognized the difference between the stars and the planets, with the objects now known as planets appearing to travel across the night sky over the course of the year, or ...

The New Horizons mission to Pluto isn’t rewriting the textbooks, says NASA spokesman Dwayne Brown. “It is writing the textbooks,” he said, as he closed a Friday press briefing with mission scientists.

Pluto has been misunderstood ever since its discovery. This documentary uncovers the most common myths about Pluto and reveals the truth behind its strange story. Judge rules Tampa’s Walton Academy ...