Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Polygon has rounded up the best icy sci-fi planets from our favorite video games, movies, television, and books ...

Recent astronomical observations have revealed a startling reality: aging stars are far more destructive to their orbiting planets than previously thought. This discovery, which challenges ...

Scientists on Earth use seismometers to get a more detailed picture of what the inside of the Earth is made of. Those seismometers record vibrations from earthquakes. The vibrations change depending ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Sky-watchers who saw the Venus-Jupiter conjunction on ...

Want to know when each planet will be at its best or when you can catch eye-catching planetary pairings in 2026? This guide breaks down the major planetary events of the year, from conjunctions to ...

A decade of observations of four planets around the young planetary system V1298 Tau revealed a rare, long-sought missing ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...

Artistic illustration of the internal structure of a lava planet in a cold state, showing a day‑side magma ocean overlain by a mineral atmosphere. The arrows indicate the direction of heat transport ...