WASHINGTON (Reuters) -Scientists are tracking a large gas planet experiencing quite a quandary as it orbits extremely close ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

For years, scientists have been scanning the icy outskirts of our Solar System for an unknown massive planet. The ...

Simulations Of Early Solar Systems Find Up To 40 Percent Chance That Planet Nine Exists Wide-orbit planets are fairly common according to the study, and there's a good chance we have one of our own.

In an exciting breakthrough in planetary science, a recent study has increased the likelihood of Planet Nine’s existence by up to 40%. This planet, also referred to as Planet X, has remained an ...

WASHINGTON (Reuters) -In addition to providing a trove of information about the early universe, the James Webb Space ...

The Vera C. Rubin Observatory is expected to find millions of unknown objects in our solar system, and perhaps even a ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from ...

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...