Neptune leans at a curious 28-degree angle—similar to Earth's, but long a mystery to scientists. Such tilts are typically the ...

Scientists report a possible new state of matter formed under extreme pressure and heat inside Uranus and Neptune.

The deep interiors of ice giant planets such as Uranus and Neptune may contain a previously unknown form of matter. This possibility comes from new ...

What can sub-Neptunes, exoplanets whose sizes are between Earth and Neptune, and which are between the known for their water-rich compositions, teach astronomers about both where and how to find life ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered two sub-Neptune exoplanets orbiting a subgiant star known as TOI-6054. The newfound alien ...

The deep interiors of ice giants such as Uranus and Neptune may contain a previously unknown form of matter, based on new computational research by Carnegie scientists Cong Liu and Ronald Cohen.

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

Scientists have seen one of the mysterious “dark spots” on Neptune from Earth for the first ever time. Researchers spotted the feature using the European Southern Observatory’s Very Large Telescope, ...