The largest of those meteorites, which came down about an hour outside of modern-day Melbourne, weighed a record-breaking 3.5 tonnes.Its journey may have begun billions of years ago, but this was still only the start of the story.The fight to claim a 3.5-tonne space rock didn't just kickstart a publicity battle that divided an empire — it also left a gaping hole in culture The one Mr Scott had cut a piece off was the biggest of its kind in the world at the time.And that's how this collection of rocks were dubbed the Cranbourne Meteorites.If a meteorite were to land in your backyard today, it wouldn't necessarily be yours to do with as you see fit.In parts of Australia, they belong to the state