1/209 Orlando, Florida, is one of the most visited places in the United States, a fact that has spurred its development during the past three decades. The next six images show just how much the city has expanded. This image is from January 1982. (NASA) ...
000-year cyclical wobble in Earth's tilt relative to the Sun. Over the last 7,000 years, the timing of Earth's closest pass by the Sun has shifted from September to January. This has gradually reduced the intensity of sunlight