This gas cloud located 500 light years away from our solar system is about to become a planet.This process usually takes a ...

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 ...

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

Researchers estimate that the planet has about a 50% chance of being in its star's Hoble zone.

Jupiter, the largest planet in the solar system, isn’t exactly the size and shape scientists believed it was. New measurements from the Juno spacecraft show ...

Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

LONDON — 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 ...

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 ...