How Arizona put Pluto on the map 95 years ago today
Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...
来自MSN11 个月
How does new solar eclipse map affect Arizona's view
In Arizona, people will be able to witness ... This causes the map to provide a narrower path of the eclipse over the United States. Because this map provides a narrower path of the eclipse ...