For generations, school posters have sorted the Solar System into tidy boxes: four small rocky planets near the Sun, two huge ...

The majority of stars in our galaxy are home to planets. The most abundant are the sub-Neptunes, planets between the size of Earth and Neptune. Calculating their density poses a problem for scientists ...

For decades, scientists have believed that Uranus and Neptune are “ice giants,” planets made mostly of icy materials like ...

A team of researchers from the University of Zurich and the NCCR PlanetS is challenging our understanding of the solar system ...

Uranus and Neptune may not be the icy worlds we’ve long imagined. A new Swiss-led study uses innovative hybrid modeling to ...

Since its launch two years ago, NASA's Transiting Exoplanet Survey Satellite (TESS) has scoured the skies to search for strange alien worlds spread out in different parts of the universe. Throughout ...

If you look at our Solar System, there’s a sharp divide between the four rocky planets and the large “ice giants” of the outer Solar System, Uranus, and Neptune. The divide isn’t only a matter of ...

A team of astronomers looking into the vast cosmos has located a planet that is the size of Neptune but has a density similar to Earth, and it just happens to be called EPIC212521166 b. The ...

A new Neptune-sized Exoplanet with a 'substantial atmosphere' and the potential for water has been identified in deep space, according to a new study. Known as TOI-1231 b, the exoplanet has a 24-day ...