But is our moon actually a planet? The answer is technically no — at least according to NASA and the International Astronomical Union (IAU), an important global authority in astronomy.

near the planet's south pole. But the "snow" seen here is quite different from what we have on Earth. In fact, it's carbon dioxide ice, and at Mars' south pole, there's 26-foot-thick (8-meter ...

Are you a print subscriber? Activate your account. By Brian Bonilla - 10 min 27 sec ago By Ad Age Staff - 19 min 37 sec ago By Tim Nudd - 30 min 9 sec ago 1 hour 23 min ago By Ad Age Staff - 1 ...

Astronomers studying a still-forming planet beyond our solar system have found that its chemical makeup doesn't fully match the swirling gas and dust disk from which it formed. The finding ...

Former Brazil and Inter Milan striker Adriano, nicknamed the “Emperor” in his prime, bid farewell to football in a testimonial match at the home of Flamengo, the club where his once-promising ...