Name of person and organisation
Dates of Discoveries
In 1906 Percival Lowell Began the search for planet X. He predicted Pluto's existence all though it was discovered by Clyde Tombaugh in 1930. He was also a passionate supporter of the theory that an advanced civillisation of irragated crops on Mars's surface with water drawn the planets poles along a canal network. Historians now believe that the canals Percival mapped were faint surface features or even a product of his imagination.
Technologies used of the time
Percival Lowell used his own observatory which he built himself in Fagstaff in 1894, the Lowell Observatory.
What contribution they made to our knowledge and understanding to the solar system
He started the search for Pluto.