Green Matters on MSN

Experts are finally getting a look at how the universe builds its most common planets

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.
New Scientist on MSN

Super-low-density worlds reveal how common planetary systems form

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

Four baby planets show how super-Earths and sub-Neptunes form

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

Small and large planets have significantly different upbringings

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...