Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

The observations show for the first time that Nereid’s peculiar orbit matches “the history we might expect from a moon that ...

Nereid was discovered by Dutch astronomer Gerard Kuiper, who named the moon after the sea nymphs in Greek mythology ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

The early solar system may have been far more chaotic than we ever imagined. A new study published in Icarus suggests that ...

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

Looking at the Solar System, Jupiter and Uranus both have plenty of irregular moons. In supercomputer simulations, the ...

Astronomers have found that a weird space rock at the edge of the solar system is locked in a rhythmic dance with Neptune. The object, designated 2020 VN40, is part of a family of distant solar system ...