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SciFri 092311 Hour 2: Arizona Remote: Grand Canyon, Lowell Observatory

22.29 MB

Podcast

Podcaster

Science Friday

Brain fun for curious people.

Beschreibung

vor 12 Jahren

Most geologists agree on the approximate age of the canyon, but puzzles remain about its carving. Plus, Lowell Observatory, famous for spotting Pluto, hunts for exoplanets today.