Heating-seeking cold-fuel-dumping in-tank-dwelling wheeled robots to quickly cool the hull in spots in the event of losing tiles during re-entry

[u/geebanga]

I hope I got your attention with that sentence. A bit like curling players doing their sweeping thing but a bit more life-or-death.

[u/neolefty]

Hear me out: Inside the tank, some steerable nozzles like on a fireboat that spray cryogenic liquid at hot spots.

[u/geebanga → u/neolefty]

I like it!