NASA Satellite Snaps 3 Billionth Photo of Earth

A 5-year-old NASA satellite has hit a mindboggling milestone high above Earth: The spacecraft snapped its 3 billionth image of the planet … that's right, 3 billion. The prolific Earth-observation satellite, called CALIPSO, took the image on June 2 using laser and infrared ranging instruments and has since gone on to take more imagery. A June 3 image from the satellite shows a vertical look at the massive smoke plume from the wildfires in Arizona. More

(Source: Space.com - Jun 11)