Space-Stricken Love by bigda 2018-08-13T16:18:41Z
@kamikaziuk The spherical planets have a gravitational force. Once you leave the atmosphere, you begin to fall in whatever direction the gravity had you fall before exiting. Since the other planets don't have a gravitational force, you can angle yourself to use them as a platform and get to the next spherical planet.
I hope that helps.