You can invade as many times as you want on a turn

[contributor]

If you just keep tapping on the alien planet with your Space Invader (my planetary invasion ship name of choice), you can invade, bombard or land troops multiple times in a turn. It's very useful for taking down enemy planets in a hurry. Feels kinda like cheating though.

[fallen]

Yep, on the list to fix. Thank you!