Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Io, the innermost giant moon of Jupiter, may not have a ...

The moon may be much older than previously believed. Scientists are challenging prior conceptions about its formation some 4.35 billion years ago in a new “idea paper.” The Earth and its moon are ...

Artist's impression of what the Moon looked like during the tidal-heating event. There would have been intense volcanic activity everywhere. The early Earth would have loomed much larger in the sky ...

What is the habitability potential on Saturn’s moon, Enceladus? This is what a recent study published in The Planetary Science Journal hopes to address as a team of researchers investigated a ...

Some white dwarfs in rapid binary orbits are far hotter and larger than theory predicts. Researchers found that powerful tidal forces between them generate enough heat to inflate their sizes and ...