Polar bears aren't white, strawberries aren't berries and the Earth isn't round—we'll have you rethinking everything you ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

For the first time, a much younger version of the sun has been caught red-handed blowing bubbles in the galaxy by astronomers using NASA's Chandra X-ray Observatory. The bubble—called an "astrosphere" ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

I had a dramatic dream last week, a dream about a man in a white suit twisting my damaged left arm, the one I’m still ...

Elected Republicans in Concord are fond of saying they “put kids first.” It’s a comforting talking point that is easy to repeat at press conferences and campaign events. But when ...

On a frigid orbit beyond Neptune, some of the solar system’s smallest worlds project a strange silhouette. Two rounded lobes, pressed together with a narrow “neck,” like a snowman that never melted.