The Cleveland Guardians entered the 2025 season with their starting rotation in disarray. An injury to Ben Lively and the ...

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

Understanding the similarities and differences of the deserts on Earth and Mars will help space travelers survive future ...

Nestled atop Mars Hill in Flagstaff, Lowell Observatory has been a cornerstone of astronomical discovery since 1894 — and ...

Wild at Heart partners with private and government landowners to re-locate the owls to new habitats around Arizona.

PHOENIX — Pluto may not be a planet according to the guidelines uses by astronomers. But as far as Rep. Justin Wilmeth is concerned, it should still be Arizona’s planet. The Phoenix Republican ...

Pluto was the little planet that could — until it couldn’t. Discovered in 1930 at Lowell Observatory in Flagstaff, Arizona, Pluto was hailed as the ninth planet in our solar system. For ...

Pluto: Arizona’s homegrown ‘ planet ’ The I Heart Pluto Festival began in 2020, 90 years after Pluto’s discovery at Lowell Observatory in Flagstaff.

Simulations show that a slow, shallow impact formed the western half of Pluto's heart - and also shed light on the dwarf planet's interior.

Pluto was discovered in Arizona. When Pluto was stripped of its planetary status, some Arizonans took that personally.

Pluto was discovered in Arizona. When Pluto was stripped of its planetary status, some Arizonans took that personally.

Arizona Gov. Katie Hobbs signed a bill making Pluto the official state planet. It was discovered at an observatory in Arizona, but was downgraded to a dwarf planet in 2006.