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

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

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

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

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

Harvard astornomer Avi Loeb suggests interstellar object 3I/ATLAS could've sent off the Wow! Signal back in 1977.

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

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

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