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.

Recent research suggests a warp in the orbital plane of Trans-Neptunian Objects (TNOs) between 80 and 400 AU, hinting at the ...

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

A study suggests an Earth-sized planet, dubbed Planet Y, may exist beyond Neptune, affecting the orbits of icy objects in the ...

The Solar System does not have a clear border. The influence of the Sun in certain domains is small enough for the Voyager ...

Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

But it’s not just looks. Rocky composition, general size, orbital behaviors—a lot of those qualities can be the same on both ...

A political discourse against scientific evidence. Postulates of the ultra -right regarding climate change and their ...

The Perseid meteor shower is widely considered the best meteor shower for the average person to view in the night sky. It’s ...

Snapchat Planets ranks you in a friend’s top 8 using planets from Mercury to Neptune, showing your closeness based on chats, ...

Tesla is testing in preparation to roll out over 100 autonomous vehicles for ride-hailing purposes in San Francisco. CEO Elon ...

Twenty-six years ago, Venus Williams and Serena Williams partnered to capture the US Open doubles championship. The Williams sisters may well stage a US Open reunion this month, their former coach ...