Huskies love to talk, and Pluto is no exception. Watch as he eagerly repeats words such as "I love you," "Hello," and more, ...

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.

Though the consequences of the cold have been widespread and acute—with travel disruptions, power outages and scores of ...

in search of perihelion ...

The Purdue University-based center says every Michigan city it tracks has seen more wintry conditions this year than last.

Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

Relatedly, astronomers may have just pushed the upper size limit of what counts as a planet.

Wind chills as low as 30 degrees below zero are in the forecast for parts of New England and the interior Northeast.

Punishing winds have combined with low temperatures to produce dangerously cold conditions across the Northeast. Forecasters say, though, that relief is on the horizon.

A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, ...

Got plans for Valentine's Day? If you've spaced out from making dinner reservations and the icy weather outside is making ...

The Winter Olympics and Paralympics are upon us once again. This year the games come to Milan and Cortina d'Ampezzo, Italy, where weather forecasts are predicting temperatures in the upper 30s to ...