What are some of the largest extraterrestrial impacts to effect Earth? Learn what we've seen in history, and what is ...

Researchers have found that Earth’s first oceans may not have been blue at all like today. Instead, they may have gleamed in shades of green for billions of years. Although Earth formed about 4.5 ...

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

In his book Alien Oceans: The Search for Life in the Depths of Space, Kevin Peter Hand takes what scientists have discovered about Earth’s oceans to imagine what kind of life might lurk in the ...

ALIEN life could be hiding away on the vast ocean of a nearby moon. Scientists say there's a chance that a "small population" could be tucked away on Titan, the biggest of Saturn's moons.

Scientists have long thought that our solar system's ocean worlds, such as Jupiter's moon Europa and Saturn's moon Enceladus, may harbor extraterrestrial life in the form of microbes. But ...

However, directly observing an ocean beneath such a world's hydrogen ... so it wouldn't be truly alien to life on our planet, even if the environment that it would live in is.

However, directly observing an ocean beneath such a world's hydrogen ... so it wouldn't be truly alien to life on our planet, even if the environment that it would live in is.