This gives it a reddish color. Mercury is the smallest planet in our solar system, but it has the greatest temperature difference of any planet, with temperatures that can range from over 800 ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

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