Put a flux capacitor on it and you don't need any coolant at impulse speed,
not until you engage warp drive. Even at that space is so cold you only get
hot in the worm holes. There all down hill ways, so if you punch it going
in, you stay on it till you stay heating up. Then just throw it in
I believe this photo was uploaded recently:
http://cdn2.alphr.com/sites/alphr/files/2017/09/titan_peak_cavern_from_above_the_event_horizon-photo_by_robbie_shone_www.shonephotography.com_.jpg
In response to Charlie's post about sending fossil fuel vehicles to other
planets, I would say that is a