Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

A new study suggests the existence of Planet Y. This hidden planet may be affecting the Kuiper Belt. The gravity of Planet Y ...

Strange Movements Of Objects Beyond Neptune The Result Of Alternative Gravity, Astrophysicists Suggest Strange movements in the Kuiper Belt had astronomers looking for Planet 9.

A mysterious new world may be hiding in the outer reaches of our solar system. According to arecent study published on arXiv ...

Planet Nine was previously suggested as a possible explanation for distant orbital clustering. It was thought to be ten times Earth’s mass, orbiting far beyond Neptune.

They kept inferring there had to be something else out there or something with a lot of mass [gravity] pulling them around. So, that's kind of how we got an idea there was a Uranus and a Neptune.

To sort out this question, the researchers looked at gravity field data collected by the Voyager 2 spacecraft when it flew by Uranus in 1986 and Neptune in 1989. A gravity field will vary ...

Neptune’s and the Sun’s gravity balance out in five regions; each planet has five such areas with respect to our star (labeled L1 through L5). In Neptune’s L4 area, six Trojan asteroids ...

Spotting an oddball object in the solar system is always a cause for celebration, but 2020 VN40 stands out for a couple of reasons. First, it supports the idea that Neptune’s gravity can pull ...

FINALLY, a plausible explanation for how Neptune captured its errant moon Triton. It seems that Triton was wandering through space locked in the gravitational embrace of a companion when the pair ...

In other words, trust gravity. But before tweeting that, it would be wise to revisit another historical episode involving Le Verrier. Even before the discovery of Neptune, Le Verrier had analyzed ...