Nowadays, with all the technological advances and the improvements in the knowledge about the outer spaces, the limits of the world had expanded, and are no longer those of the earth, but they go beyond the sky and to the space. To learn more about those satellites that have conquered the space, all you have to do is visit the Heavens Above web page.
On this site you will find all the information you will like to learn about those satellites that are circling the earth as you read this. When you visit this web page you will have the possibility of finding out when you will have the opportunity of actually seeing a satellite. On this site, they predict based on the information they know, where is a satellite going to be in a certain moment and if is going to be visible from earth. You can also take a look at their calendar to see if you will have the opportunity of watching one right from your home. They have predictions for the ISS, ATV, Envisat and the HST satellites. Reading interesting information about astronomy is also a possibility that this web page offers you. 
