1769 Transit of Venus observed from Tahiti search for the alleged southern continent. HMS Bark "Endeavour" was chosen to take the astronomers and other scientists to Tahiti. James Cook was commissioned as Lieutenant and appointed to command the vessel. Cook was the obvious choice as he was an outstanding seaman with navigational qualifications, a capable astronomer and had observed a 1766 annular eclipse in Newfoundland that was communicated to the Royal Society by John Bevis. Once the "Endeavour" arrived on the island, Cook decided to set up the Venus transit observatory on shore. He required a completely stable platform which the ship could not provide and plenty
SS Empire Explorer general cargo, sugar and 38 bags of mail. She left the convoy at the Clyde, arriving on 15 May. "Empire Explorer" sailed on 1 June to join Convoy OS 30, which departed from Liverpool that day and arrived at Freetown, Sierra Leone on 19 June. She was in ballast and armed with a 4-inch or 4.7-inch gun, eight machine guns and a number of kites. She was stated to be bound for George, South Africa. She arrived at Demerara on 21 June, sailing nine days later for Trinidad, where she arrived on 1 July. "Empire Explorer" sailed from Trinidad on