Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

Stars and planets are inextricably linked. They form together and stars shape the fate of planets. Stars create the dusty ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Discover why the solar system's planets are arranged as they are, shaped by formation conditions and planetary migration.

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Key takeawaysPlanets larger than Earth but smaller than Neptune are the most common kind in the galaxy, but because our solar ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system? When you purchase through links on our site, we may earn an affiliate commission. Here’s ...