This story is a sequel to Finishing off the Fourth Wall

After getting sucked into a wormhole, the Mane 6, Gummy, Derpy, and Dispark are dumped into the world of Kerbal Space Program. If that wasn't weird enough, there is also an anthromorphic cat named IRKittyz that is the new manager of a space program called the Kerbal Space Program. The ponies quickly find out that the only way back to their world is on a faraway exoplanet named Eeloo. In order to get to Eeloo, a rocket is needed. There is one problem through, kerbals don't have the tech to get there. So they did the only logical thing to do... join the KSP of course!

The prequel is not a requirement to read, but it is highly recommended as it explains the current situation the ponies are in before the whole wormhole thing.