For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt ... One assumed ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

Slideshows ...

Sea ice plays many important roles for the global climate: Its white surface can reflect energy back into space, helping the ...

The Arctic Ocean likely had the smallest winter ice cover in 47 years of satellite records this season, with just 5.53 ...

For the first time, the James Webb Space Telescope (JSWT) has revealed bright auroral activity on the planet Neptune.

Sea ice extent is at record, and near record, lows for this time of year in both polar regions, leaving the planet ...

The new phase comes in the form of a pattern of electron spins—half of which are highly ordered, or "cold", and the rest of ...

A team of researchers used the James Webb Space Telescope to uncover new details about SIMP 0136, a free-floating planet in ...