A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth ...

Viewed from orbit, Jackass Flats — situated in southern Nevada about 65 miles northwest of Las Vegas — could easily be ...

A recent study by Princeton University astronomers suggests the possible existence of a previously undetected planet in our ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

When you look at the solar system, you might notice that the planets' orbits are tilted, and oddities in the protoplanetary ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

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

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system?

Astronomers found that interstellar object 3I/ATLAS shows an "extreme abundance ratio" of nickel and iron in its gas plume.

Interstellar comet 3I/ATLAS has caught the interest of astronomers and amateur enthusiasts alike as just the third object to ...

Solar system is a collection of various celestial bodies that are held together by the gravitational pull of the sun. Our ...