Our planet has hanged dramatically. Comparing some of the pictures from NASA’s website, one can see how humans changed what the Earth looks like over the years. The time difference between these photos ranges from five to 100 years. Take a look for yourself and get ready to be amazed! Pedersen Glacier, Alaska. Summer, 1917 … Continue reading Earth, Then And Now – 16 Photos By NASA That Depict Incredible Changes In The World