Transits of Venus occur in a pattern, with pairs of transits 8 years apart separated by much longer gaps, that repeats every how many years?
After discovering a new planet, Herschel named it Georgium Sidus (George's Star), or the "Georgian Planet" in honour of King George III. The scientific community did not like the name, and decided to call it what?
Which planet, named after the Roman god of war, is also called 'Red Planet' due to its reddish appearance, caused by iron oxide prevalent on its surface ?
