Remote Sensing is the acquisition of information about the earth from a remote viewpoint. In our case, we like to obtain this information through satellite imagery or aerial photos. This data is known for opening up a world of possibilities to understand the environment better, and when used in conjunction with GIS, is the most powerful environmental analytical system on the planet! Satellite imagery has come a long way, we are now able to obtain high resolution, clear images, at a fraction of the price, and much quicker than we used to.