CAPE CANAVERAL, Fla. — NASA captured 20 years of changing seasons in a striking new global map of the home planet. The data visualization, released this past week, shows Earth’s fluctuations as seen from space. The polar ice caps and snow cover are shown ebbing and flowing with the seasons. The varying ocean shades of blue, green, red and purple depict the abundance – or lack – of undersea life. “It’s like watching the Earth breathe.