Invent your own new puberty for everyone!
You and a million other humans are colonizing a new planet and your job as chief genetic engineer is to code a second puberty in everyone's genome to affect them and their future offspring if they've reached a certain age but all it needs to do is adapt their organs to survive a different gravity and atmosphere. Boring! While you're at it you decide to take some creative liberties with everyone's bodies and pass them off as side effects. Maybe they will thank you later.
What's new puberty do to guys? What's it do to gals? Are there different versions or variances? Does old puberty still exist? When does new puberty happen and how long does it last? What effects does new puberty have on society? Do you alter your own genome? Go into as much or little detail as you want. For pics show us what your new breeds of humans might look like. It's up to you!