Despite this, the slightly eccentric and tilted orbits of the Solar System’s gas giants remain an enduring mystery. New ...

Astronomers analyzing archival images from JWST have discovered an unexpectedly vast population of the smallest asteroids ever seen in the asteroid belt between Mars and Jupiter.

NASA and ESA’s Hubble Space Telescope has been observing the outer planets through a program called OPAL (Outer Planet ...

NASA's recent flybys of Io, however, reveal that it likely doesn't contain a global magma ocean beneath its surface, as ...

Scientists with NASA's Juno mission to Jupiter have discovered that the volcanoes on Jupiter's moon Io are each likely powered by their own chamber of roiling hot magma rather than an ocean of magma.

Researchers from the Juno mission have finally solved a mystery that has puzzled scientists for over four decades.

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

Hubble’s OPAL program tracks Jupiter, Saturn, Uranus, and Neptune Seasonal and atmospheric changes revealed over a decade Key insights into gas giants’ weather systems shared by NASA ...

Research conducted by scientists with NASA’s Juno mission has unveiled the mechanisms behind intense volcanic activity on ...

Over the last ten years, OPAL has observed Uranus' northern hemisphere, which has faced the inner solar system for the ...

Astronomers using the W. M. Keck Observatory in Hawaii have made a startling finding: a distant exoplanet with a tail hundreds of thousands of miles long. Planet WASP-69 b is located 164 light-years ...

A planetary parade is set to be visible in the night sky for the start of the new year -- and this one will bring with it a rare occurrence.