Add Yahoo as a preferred source to see more of our stories on Google. An illustration showing Planet Nine, a hypothetical, undiscovered planet in our solar system. New research now suggests the ...
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Is there a secret planet in our solar system?
Scientists believe our solar system may be hiding a secret world — and it’s not the famous Planet X :eyes: A new study ...
How to make a super-Earth: The universe's most common planets are whittled down by stellar radiation
Some 350 light-years away, the V1298 Tau system features an infant sun-like star, just 23 million years old, orbited by four ...
The curious minds at What If discover what happens if a new planet appears in our solar system, revealing gravitational effects, collisions, and orbital shifts.
The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...
Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics but collectively believed to be ...
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