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

Ryugu’s samples reveal that water activity on asteroids lasted far longer than scientists thought, possibly reshaping ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

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

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its nebular gas had been consumed—Earth's solar system and its planets looked more ...

All the planets orbit in roughly the same plane because they formed from a single rotating disk of gas and dust — the solar nebula — that flattened as it spun around the young Sun. The shared origin ...

About 4. 6 billion years ago, the Solar System formed from a cloud of dust and gas collapsing in on itself due to gravity.

Interstellar visitor 3I/ATLAS has been constantly changing as it makes its way through our solar system. That's to be ...

A new peer-reviewed study finds that early planet formations were assembled from fragments of earlier bodies within the Solar System.

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some ...

Could a lonely planet wander aimlessly through the restless galaxy change the subtle dance of gravity within our solar system ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...