We know that nothing persists for ever so surely plastics in the sea have to break down at some point. How long does it take? And where does the plastic end up? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Would you receive any warning before being squished by a meteoite?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...