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

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

Backscatter electron (BSE), inverse pole figure (IPF) and grain reference orientation deviation (GROD) maps of olivine within NWA 12264. Credit: Communications Earth & Environment (2025). DOI: 10.1038 ...

Scientists have revised the timeline for the approach of the rogue star Gliese 710, which is now expected to enter the solar system sooner than previously thought. This accelerated timeline has raised ...

A timeline of the solar system etched into a concrete sidewalk. Included are drawings of the planets depicting their positions; the traveling time of sunlight to the planets and the revolutions of the ...

This illustration shows the creation of an asteroid family. Ejected fragments from catastrophic collisions of asteroids between Mars and Jupiter tend to follow similar orbits around the sun, allowing ...