The alfa Corvi delta incident

Then there was this planet with a subcrust from of carbonaceus asteroids that the people of the only continent, surrounded by the world ocean, on the planet, had been using to their advantage for as long as anyone could remember. Then a small meteorite hit the continent, this lead to loss of buoyancy, and later the planet was used only by sport fishers, marine archeologist and scavengers.

coincidence or not?

Ah, weird, just occurred to me that 255K is pretty close to 0F. Did Fahrenheit calculate the blackbody temperature of the earth?