[Zathras]

Because of the inverse square law, it is nearly impossible that this could be a space drive system.
Firing up the drive system would incinerate entire planets.

[Bob434]

not if they were sprayed with fire retardant

[Army Air Corps]

Firing up the drive system would incinerate entire planets.

Maybe that's how THEY get their jollies.

[Steely Tom]

Because of the inverse square law, it is nearly impossible that this could be a space drive system. Firing up the drive system would incinerate entire planets.

Not if we happen to be bore-sighted right along the axis of the "exhaust," or whatever is generating the force vector that powers the craft.

As far as "incinerating entire planets," maybe, so maybe they have to go out in the middle of galactic "nowhere" before they press the button.

Kind of like our White Sands Missile Range, or Area 51.