For years we've wondered whether there might be life on other planets... Now, at long last, you can prove that aliens do exist with these spoof photos! Here's how to put technology to creative use to fool your friends. If you were to draw the rocket on with pen it could rub off but with these photos it doesn't. Start with an original photo, and make sure you've got the matching negative. Put the negative on something that gives a lot of light so that you can see what you're doing. In the studio Steven used a light box but you could hold the negative up against a window. Gently draw on the negative with the sharp bit on a pair of compasses. It helps to put the original photo next to the negative so you can plan what you're going to draw. When you get the negative redeveloped, your picture will change from something like this... ...to something like this. You could also draw onto your negative with a black permanent marker. Then when you get it developed your drawing will come out white! See what spooky things you can think of to add to your photos. What about a Loch Ness monster? Or a flock of bats? There must be something different on this picture, it's just tricky to work out what it is...