They were first seen but left unnamed by a German expedition under Eduard Dallmann, 1873–74.The islands were resighted and roughly charted by the Third French Antarctic Expedition under Jean-Baptiste Charcot, 1903–05.Charcot named what he believed to be the large easternmost island in the group "Île Melchior" after Vice Admiral Jules Melchior of the French Navy, but later surveys proved Charcot's Île Melchior to be two islands, now called Eta Island and Omega Island.Its descriptive name was probably given by Discovery Investigations personnel who roughly surveyed the harbor in 1927.This Palmer Archipelago location article is a stub.