The solar system’s most giant planet is slightly less of a giant than scientists once thought. Jupiter, a world that is so huge that it could hold 1,000 Earths, is eight kilometers narrower in width at its equator and 24 kilometers flatter at its poles than had been previously estimated,

For over 50 years, we thought we knew the size and shape of Jupiter, the solar system's largest planet. Now, Weizmann Institute of Science researchers have revised that knowledge using new data and technology.

The discovery provides a precious peek into the dawn of our own solar system as well The discovery provides a precious peek into the dawn of our own solar system as well The discovery provides a precious peek into the dawn of our own solar system as well ...

When NASA’s twin Voyager probes left Earth in 1977, they carried computers weaker than a hand calculator and a modest goal of touring the outer planets. No one seriously expected them to redraw the map of our cosmic neighborhood nearly half a century later.

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space than ever before

New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four massive but extremely low-density worlds orbiting the star appear to be inflated precursors of super-Earths and sub-Neptunes.