Their origin finally explained!

By harnessing an incredible arsenal of physical mechanisms, astrophysicists have finally managed to understand how giant planets form. A feat that Mathieu Grousson broke down step by step.

illustrator: Christophe Martin

It was the solar system's last great mystery.

Read it in Science & Vie No. 1181, February 2016.
http://www.science-et-vie.com/2016/01/au-sommaire-de-science-vie-n1181/