One has seen the beauty of the sunrise and the sunset. Wouldn’t it be  all marvellous to have a better view from high above the Earth? Out of  the total population on Earth, only a few people have had the luck to  get a view of Earth from space. A Canadian company called UrtheCast (the  word “Urthe” is pronounced similar to “Earth”, though they could have  really named it Earth!!) has made some contracts with a Russian space  agency called Roscosmos to stream the video of Earth online. The live  sight of a part of the Earth going into darkness, the sight of  earthquakes and tsunamis on certain regions of the world can all be  viewed in high-definition from now on.
They have decided to mount a set of video cameras on the outer part of  the International Space Station. The video from these cameras will be  sent back to Earth and will be uploaded on to a website so that everyone  can see the absolute beauty of Mother Earth for free!!
Out of the two cams, one is used to shoot the video in high at a rate of  3.25 frames per second. The other camera is used to send the obtained  signal back to Earth in a lower resolution, and thereby producing a 3  colour image. The camera will have all the basic functions like zoom in,  zoom out, rewind and angular movement. The users will be give the  freedom of tracking the happenings at any part of the Earth and also  interact with the video feed. The camera is developed by the joint  co-operation of a UK company and a Canadian company. These companies  have worked together in some researches and developments of the space  shuttle’s robotic arm along with its software support.
A video showing an ad of their program is given below. Take a look.
http://www.youtube.com/watch?v=0ScNJ74SkPE&feature=player_embedded
According to Scott Larson, one of the founders and president of  UrtheCast, this will be first project ever to show a 24/7  high-definition screening of Earth. It is sure that the developers will  charge a small fee for the video. But they haven’t revealed any of that  information till now.

Thanks for your information thanks a lot circuitstoday