Americas. True-color satellite image of the whole Earth centered on the Americas. North is at top. Oceans are blue, vegetation is dark green and mountains are brown. North America (upper center) and South America (lower right) are connected by the thin stretch of land that forms Central America. The Arctic (white) is at North. This image is a composite of many cloudless images taken by the AVHRR (Advanced Very High Resolution Radiometer) on a TIROS weather satellite.