Did you know the International Space Station is the third brightest object in the sky, after the sun and moon, and can easily be spotted if you know where to look? A new service from NASA called 'Spot the Station' aims to help by sending an email or text message a few hours before the station flies over your house. The service will only notify you of sightings that are high enough in the sky and last long enough to best view of the orbiting laboratory. Get more details at Mail Online and sign up for the service here.