From 2002 to 2012 the European Space Agency Envistat satellite, the largest Earth observation satellite, circled the Earth collecting information on our environment. Contact with Envistat ended in 2012 but a wealth of information and images were collected. In 2014, the European Space Agency launched multi-satellite projects providing more amazing images.
Every week, the European Space Agency releases a new satellite image taken by Earth-observation satellites showing incredible places on Earth.
Online: ESA: Earth Observation Image of the Week