This volume discusses the evolutionary paths linking planets and their atmospheres to their
origin within circumstellar disks. It reviews the main phases of this evolution summarizes
what we understand and what are the important open questions and suggests ways towards
solutions. Dust accretion within disks generates planet cores while gas accretion on these
cores leads to the diversity of their fluid envelopes. The formation of planetary
proto-atmospheres and oceans is an essential product of planet formation. A fraction of the
planets retain their primary proto-atmosphere while others lose it and may form a secondary
atmosphere. When the disk finally dissipates it leaves us with the combination of a planetary
system and a debris disk. Using the next generation of observing facilities we will be able to
reconstruct more accurately the evolutionary paths linking stellar genesis to the possible
emergence of habitable worlds.Originally published in Space Science Reviews Volume 205 Issue
1-4 December 2016
