Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

Astronomers have unexpectedly discovered the heaviest Neptune-like planet yet — one four times more massive than our solar system's Neptune.

Interest in steam world exoplanets really heated up in October 2024 when the James Webb Space Telescope (JWST) discovered the ...

The exoplanet TOI-1853 b is roughly the size of Neptune but more dense than any planet of its size yet discovered ...

NASA's TESS satellite has discovered a Neptune-sized exoplanet closely orbiting its host star. It's just the fourth object of its kind ever identified.

In October 2018, astronomers discovered what they thought could be an exomoon, a moon outside our solar system. The exomoon, which is estimated to be the size of Neptune, was found in orbit around ...

The data they uncovered indicates an exomoon the size of Neptune, in a stellar system 8,000 light years from Earth.