Project Vespa was a United Empire of Earth (UEE) government project with the goal of developing a method to weaponize terraforming. Files were declassified and disclosed to the public in SEY 2795 in the wake of the Messer Era War Crimes Trials.

The project's leader and creator, Dr. Thessaly Tayac, led the terraforming, de-terraforming, and re-terraforming of Tayac I until his death in 2590. Project Vespa ended in 2750, when the planet became too unstable for the project to continue.