Canals on Mars | Percival Lowell's Clark Telescope | Flagstaff Arizona Observatory Video
What Makes Lowell Observatory's Archives Special?
Sackler Astronomy Lecture: The Search for Planet Nine
From the Archives: Percival Lowell's Mausoleum
Percival Lawrence Lowell was an American businessman, author, mathematician, and astronomer who fueled speculation that there were canals on Mars. He founded the Lowell Observatory in Flagstaff, Arizona and formed the beginning of the effort that led to the discovery of Pluto 14 years after his death.