Browse Items (26 total)

Tombaugh, Muron, Telegram to Clyde Tombaugh from his parents, 1930-03-14

Telegram to Clyde Tombaugh from his parents congratulating him the day after the announcement that he discovered a planet (Pluto)

Tags: Clyde Tombaugh, Pluto

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 8, 1986-05-23

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 7, 1986-05-23

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 6, 1986-05-23

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 5, 1986-05-23

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 4, 1986-05-22

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 3, 1986-05-22

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 2, 1986-05-22

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Lowell Observatory, Identification, Optimization, and Protection of Optical Telescope Sites, Part 1, 1986-05-22

Audio recording of a conference on the Identification, Optimization, and Protection of Optical Telescope Sites, Flagstaff, AZ, May 22-23, 1986

Einstein, Albert, Letter from Albert Einstein to Lowell Observatory, April 30, 1947, 1947-04-30

A letter from Albert Einstein to Lowell Observatory asking for support in educating the public about atomic energy and its implications.

Tags: Albert Einstein