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?

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

It came from another star and passed through our solar system at impossible speed. Astronomers scrambled to study it, but it ...

The enigma of the intruder about the same size as Manhattan Island is making astronomers rethink what they know about cosmic ...

The interstellar object 3I/ATLAS has been something of a mystery ever since it graced our solar system. From all outward ...

One of the most notable properties of the giant planets in our solar system—Jupiter, Saturn, Uranus and Neptune—are the ...

While Loeb is known for making some controversial claims and predictions in the past, he is still a very respected astronomer ...

The mysterious interstellar comet 3I/ATLAS is absolutely blasting out water at a staggering rate, astronomers found.

Water is the universal yardstick of comet science, the baseline for measuring how sunlight drives a comet's activity and ...

The stunning photos of the interstellar object, 3I/ATLAS, were taken by the European Space Agency's Mars orbiters last week.

A team of astronomers has attempted to track the path of interstellar object 3I/ATLAS back into the past, tracing its path ...