NOTHING NEW UNDER THE SUN (ALMOST)
18th February, 1930 : A new planet, orbiting beyond Neptune, has been discovered by the American astronomer Clyde Tombaugh. It has been named Pluto. Astronomers have searched for such a planet for many years, as it could explain irregularities in the orbit of Uranus.
Tombaugh started work a year ago comparing pictures of the same part of the sky taken at different times, in the hope of detecting an object moving against the fixed background of the stars. He compared thousands of pictures, each showing tens or hundreds of thousands of stars, before he was eventually successful.
[ Today his discovery would be another proof of anthropogenic global warming and the necessity of global government. ]