I'm looking for the name of a sci-fi book based on a generational spacecraft that sent heavy rain (radioactive isotopes) to Earth because they were angry, then later sent a message to Earth warning them about heavy rain and also apologizing.

1 Answer 1


This is likely Starburst by Frederic Pohl.

The particles are kaons radiation which causes all nuclear material on Earth into a heat meltdown.

If so then it's been asked in here a few times

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