Planet Y? Astronomers find fresh clues of hidden world in our solar system

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...
Phys.org

The hunt for 'planet nine': Why there could still be something massive at the edge of the solar system

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the discovery of Pluto in the 1930s. Labeled as planet X, prominent astronomers ...
New Scientist

There might be a 'Planet Y' hiding in the outer solar system

Somewhere at the edge of the solar system a new Earth-sized world might be lurking, dubbed Planet Y. Astronomers have long proposed that there might be hidden planets beyond the Kuiper belt, a region ...
The New York Times

This Powerful Telescope Quickly Found 2,100 New Asteroids

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a mysterious Planet Nine. By Kenneth Chang Kenneth Chang visited the Vera C. Rubin ...