Earth has just 5 billion years left: The shocking truth about our planet’s lifespan

Planets are often described as ancient, unchanging worlds. Planets are born out of chaos, shaped by violent collisions and ...

JWST solves a longstanding mystery of giant planet formation

Gas giants are massive worlds made mostly of hydrogen and helium. They lack solid surfaces, and in our solar system, Jupiter ...

How big can a planet be? With very large gas giants, it can be hard to tell

Gas giants are large planets mostly composed of helium and/or hydrogen. Although these planets have dense cores, they don't ...
Knowridge Science Report

Scientists finally solve the mystery of how the most common planets form

Astronomers have finally figured out how the most common types of planets in our galaxy are formed—by watching a set of baby planets grow up in real time. These worlds, found in a young star system ...
Mashable

'Ice giant' planets Uranus and Neptune might not be full of ice after all

The Hubble Space Telescope has peered at Uranus, left, and Neptune to study the so-called "ice giant" planets, but little is known about their interior composition. Credit: NASA / ESA / M. Showalter / ...