Rocket template (download below) or plain paper Scissors (grown-up use only) Sticky tape Felt tip pens or colouring pencils Paper straw From the leftover paper from which you cut out your rocket ...

For example, Jupiter is the most massive planet in our solar system. It’s so big, it could swallow 1,000 Earths. So it requires a very high escape speed: 133,100 mph (about 214,000 kilometers per hour ...