He then sent these drawings to Lowell Observatory in Flagstaff ... dot of light that would soon be known to all the world as Pluto. My father worked for the Lowell Observatory for the next ...

The controversy endures over Pluto's true status ... At just 23 years old, Tombaugh sent his drawings, unsolicited, to several institutions and observatories around the United States, hoping ...

Pluto, with its heart-shaped glacier ... with which he had conducted observations of Mars and Jupiter. He made drawings of the two planets—drawings he sent to the Lowell Observatory, hoping ...

The search for Pluto did not begin with Clyde Tombaugh ... "Tombaugh sent some of his drawings off to different places, including Lowell Observatory, and he got this letter back from the director ...