New research suggests a giant impact may not have been responsible for the formation of Jupiter's core. Most planetary scientists thought that a colossal collision with an early planet containing half ...

Collaborative work by amateur and professional astronomers has helped to resolve a long-standing misunderstanding about the composition of Jupiter's clouds. Instead of being formed of ammonia ice -- ...

Not all of the solar system’s building blocks formed simultaneously. Some of the first solid bodies, or planetesimals, formed in the first million years after the Sun was born. Others, including the ...