Strange ‘super-puff’ planets as big as Jupiter but lighter than cotton candy found - Rare planets are lightest known of their ...

Uranus looks calm from a distance, but it is one of the strangest planets ever discovered. With a sideways rotation, broken ...

Two newly confirmed "super-puff" planets are so diffuse that they are less dense than cotton candy, despite being about the size of Jupiter. Their rare orbital relationship and enormous, lightweight ...

A groundbreaking super-puff planet discovery has revealed two giant exoplanets with densities below cotton candy, changing how scientists understand alien worlds. These Jupiter-sized planets show that ...

Astronomers have catalogued more than five thousand planets orbiting distant stars, and a handful of them defy almost ...

A mysterious "rogue" planet has been observed gobbling six billion tons of gas and dust a second—an unprecedented rate that blurs the line between planets and stars, astronomers said Thursday. Unlike ...

First look: For more than a decade, GJ504b has been something of an oddity – easy to spot, hard to understand. The planet orbits a sun-like star about 57 light-years from Earth and has stood out since ...