We have NASA’s Landsat program to thank for this rare view of the Atlantic Ocean in the Bahamas, as captured by satellite. The patterns you see are sand and seaweed beds that have been sculpted by ocean currents. That dark spot? It’s called the Tongue of the Ocean. The tongue is a deep, dark trench that separates the islands of Andros and New Providence in the Bahamas and connects to a larger geological feature known as the Great Bahama Canyon.