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?

Our Solar System hides worlds of fire and ice, storms that outlast civilizations, and mysteries still beyond human reach.

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

Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...

NASA unveiled the result of the research that analyzed over 40 years worth of old satellite data to add more into the ninth ...

Interstellar comet 3I/ATLAS is just the third such object ever confirmed to have entered our solar system. It has attracted ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

NASA is tracking an object that is entering the solar system at approximately 245,000 km/h. This interstellar visitor is ...

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

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

Damanveer Singh Grewal suggests that planetesimals in the early solar system emerged from a succession of high-energy ...