Early life. Percival Lawrence Lowell was born on March 13, 1855, to a prominent, wealthy Bostonian family. Son of Augustus and Katherine Bigelow Lowell, young Percival attended Harvard University ...

Lowell Observatory is ranked #2 out of 18 things to do in Flagstaff. ... This observatory was founded in 1894 by the Harvard-graduated mathematician Percival Lowell.

Percival Lowell Theorizes the Existence of a Planet X . In the early 20th century, the businessman, astronomer, and founder of the Lowell Observatory in Arizona, ...

Schiaparelli discovered 104 canals; Prof. Percival Lowell and his staff of the Lowell Observatory at Flagstaff, Arizona, have discovered over 350, and they regard this number as no limit.

Percival Lowell, born into wealth and influence, had an outsized role in shaping views of the solar system in the fin-de-siècle popular imagination. Credit: Library of Congress/Wikimedia Commons ...

Percival Lowell's theoretical prediction of a ninth planet, "Planet X," initiated a 25-year search at Lowell Observatory, beginning with calculations based on Uranus' orbital perturbations.

Astronomer Percival Lowell founded his Arizona stargazing lab in 1894 to aid in his search for life on Mars. While that quest is still ongoing, the observatory made history as the place where ...

Percival Lowell's theories of a 9th planet in our solar system came to fruition with the discovery of Pluto at the Lowell Observatory in Flagstaff.

In 1906, astronomer and businessman Percival Lowell launched a search for "Planet X," a hypothetical giant planet orbiting the sun beyond Neptune.

Lowell searched for this elusive planet, but he died in 1916 having never found it. Using a tool called a blink comparator , Tombaugh finally found the mysterious body in 1930.