Astronomers are closing in on what looks like a colossal missing piece of the Solar System, a giant planet that appears to ...

Inside the cores of ice giant planets, the pressure and temperature are so extreme that the water residing there transitions ...

Based on their models, the UZH astrophysicists concluded that the interiors of Uranus and Neptune could have a wide range of ...

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 ...

Far beyond Neptune lies a vast and unsettling frontier filled with dwarf planets, ancient ice worlds, collapsing atmospheres, ...

The solar system's two largest planets adorn the evening sky this month, while the smaller inner planets linger near the Sun and remain mostly out of sight. You'll want to make Saturn your first ...

Scientists suggest superionic “hot black ice” deep inside Neptune may explain its tilted, offset and chaotic magnetic field, ...

Planetary rings explained: composition, formation theories, and a comparison of Saturn, Jupiter, Uranus, and Neptune’s rings.

"We've often seen the 'baby pictures' of planets forming, but until now, the 'teenage years' have been a missing link." ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf ...

At extreme pressures and temperatures, water becomes superionic — a solid that behaves partly like a liquid and conducts electricity. This unusual form is believed to shape the magnetic fields of ...

Under extreme planetary conditions, water turns into a strange, electricity-conducting solid hidden deep inside giant planets.