Forums Members Register Login Stump Us Science In 1781, what was t... In 1781, what was the first planet to be discovered using the telescope? Last Post RSS Stanley Barber (@barbarousauger1) Eminent Member Joined:4 years ago Posts: 26 15/05/2017 5:31 pm In 1781, what was the first planet to be discovered using the telescope? ReplyQuote ‹›× ‹›× Working Please Login or Register