Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

Nestled atop Mars Hill in Flagstaff, Lowell Observatory has been a cornerstone of astronomical discovery since 1894 — and it’s still inspiring curiosity today. Oversight Committee releases ...

Object Details Author Schindler, Kevin Subject Lowell Observatory History Contents The Lowells talk only to Cabots -- Abandon cities and forgo plains -- The best telescope money can buy -- The mystery ...

Pluto, discovered 90 years ago on Feb. 18, 1930, was long considered the solar system's ninth planet, but was relegated to dwarf planet status in 2006.

Nestled atop Mars Hill in Flagstaff, Lowell Observatory has been a cornerstone of astronomical discovery since 1894 — and it’s still inspiring curiosity today.

Pluto, discovered 90 years ago on Feb. 18, 1930, was long considered the solar system's ninth planet. Although small, it orbits the sun and has the spherical shape required to be considered a planet.