Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in space? And, either way, what does this mean for other water worlds in our ...

Astronomers have long believed that “water worlds,” planets rich in water and ice, were among the most common in our universe. This view has shaped much of our understanding of planetary formation and ...

The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

Researchers found that the oxygen atoms are linked in an irregular structure, almost like a crystal, unlike their usual ...

A new study challenges the dream of water-rich “Hycean” planets like K2-18b, suggesting that most sub-Neptunes lose their water deep into their interiors during formation. Instead of vast oceans, ...

"It represents a major step forward in how we think about the search for distant worlds capable of hosting life." When you purchase through links on our site, we may earn an affiliate commission. Here ...

At extreme pressures and temperatures, water becomes superionic — a solid that behaves partly like a liquid and conducts ...

Some planets might produce their own water instead of relying on outside sources. In laboratory experiments, researchers simulated extreme conditions found within certain exoplanets by blasting ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists are observing an Earth-like exoplanet that may contain water using NASA's James Webb Space Telescope, the space agency ...

Researchers have discovered more than 6,000 exoplanets in our Milky Way. Of these, the sub-Neptune class, which are smaller than Neptune and more massive than Earth, are the most common. These planets ...