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

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. With Earth directly between Uranus and the Sun, the seventh ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Astronomers have captured an exceptionally rare view of young planets in mid-transformation, revealing how bloated, giant worlds may shrink into the most common planets in the galaxy. Astronomers have ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.