How long would it take for all our space junk to fall back to earth and burn up in the atmosphere?
Renee Colwell, New York City, US
We pay 拢25 for every answer published in New Scientist. To answer this question 鈥� or ask a new one 鈥� visit newscientist.com/lastword. Terms and conditions apply.
Advertisement
This article appeared in print under the headline 鈥淐atch a falling star鈥�