Bibliography
http://www.bbc.co.uk/news/science-environment-17790420
http://en.wikipedia.org/wiki/Envisat
http://www.esa.int/Our_Activities/Observing_the_Earth/Envisat/ESA_declares_end_of_mission_for_Envisat
http://www.asc-csa.gc.ca/eng/satellites/envisat/Default.asphttps://earth.esa.int/web/guest/missions/esa-operational-eo-missions/envisat
http://www.skyatnightmagazine.com/news/envisats-mission-over-after-10-years-spent-orbit
Google images
YouTube
http://en.wikipedia.org/wiki/Envisat
http://www.esa.int/Our_Activities/Observing_the_Earth/Envisat/ESA_declares_end_of_mission_for_Envisat
http://www.asc-csa.gc.ca/eng/satellites/envisat/Default.asphttps://earth.esa.int/web/guest/missions/esa-operational-eo-missions/envisat
http://www.skyatnightmagazine.com/news/envisats-mission-over-after-10-years-spent-orbit
Google images
YouTube