By Jacinta Bowler The Hubble Space Telescope has been floating above us for 30 years and has made more than a million observations, so it makes sense that an asteroid occasionally gets in the way of a good photo.
With a question about square numbers, here’s a chance to get your brain in shape! Have a go and see if you can get 5/5. If you’re after more fun science for kids, subscribe to Double Helix magazine!
