If you're in Flagstaff, explore the Lowell Observatory, where Pluto was discovered, and its brand new Astronomy Discovery ...

If you're in Flagstaff, explore the Lowell Observatory, where Pluto was discovered, and its brand new Astronomy Discovery Center. Here are some of the top planetariums and observatories Arizona ...

At the Lowell Observatory, visitors can conjure their inner astronomer by peering through world-class telescopes and sitting in on lectures on topics like black holes and the history of Pluto.

Pluto was discovered at Lowell Observatory in Flagstaff in 1930. Planet X, as it was called, was quickly renamed Pluto, the ...

In a look ahead at a week of Cambridge and Somerville events, the Glowball benefits Art at the Armory, it's Halfoween and ...