Built in 1894, it is one of the oldest observatories in the US and has led to many important discoveries. In 1930, Clyde Tombaugh identified the solar body Pluto (originally thought to be a planet). Daha fazlasını oku.
Built in 1894, it is one of the oldest observatories in the US and has led to many important discoveries. In 1930, Clyde Tombaugh identified the solar body Pluto (originally thought to be a planet). Daha fazlasını oku.