FLAGSTAFF – Clyde Tombaugh sat in the Orpheum Theater that fateful night in February 1930, waiting for clouds to pass before the 24-year-old astronomer could return to Lowell Observatory to confirm ...

After passing in the state senate, a new bill that would officially designate Pluto as Arizona's state planet is now at the will of Gov. Katie Hobbs. Since its discovery in Flagstaff, Pluto has become ...

PHOENIX – The Pluto Discovery Telescope at Lowell Observatory has reopened for the first time in a year after undergoing renovations. The telescope in Flagstaff was made famous on Feb. 18, 1930 when ...

An annual event over recent years, the I Heart Pluto Festival in Flagstaff, Arizona, celebrates the history, heritage, and cutting-edge astronomy at Lowell Observatory. On Feb. 18, 1930, the young ...

FLAGSTAFF, AZ (3TV/CBS 5) — While it’s classified as a dwarf planet, a new Arizona bill would make Pulto our new state planet. This weekend will mark the 94th anniversary of the discovery of Pluto at ...

(Correction: An earlier version of this story misstated how far Pluto is from the sun. The correct number is 3.7 billion miles.) What was discovered in Flagstaff, Arizona, and killed off in Prague? If ...

Update: Since this episode originally aired, the bill to make Pluto the official state planet of Arizona was signed into law. Science was forever changed, thanks to an observatory in Flagstaff named ...

Astronomers using the Hubble Space Telescope have discovered a fourth moon orbiting Pluto. Pluto - for the record - is still classified as a dwarf planet. Astronomer Larry Wasserman of Lowell ...

“Star Trek” has inspired generations of scientists and space explorers, and one of its most enduring characters is Mr. Spock, played by the late Leonard Nimoy. Mr. Spock, a half-human, half-Vulcan, ...

What was discovered in Flagstaff, Arizona, and killed off in Prague? If you answered "Pluto's planethood," your grasp of the astronomical is excellent. Feb. 18 marks the 95th anniversary of the ...

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