“flat” star among the background pinpricks of light, spanning just 2” across. You may notice the disk’s distinctive bluish hue. Don’t mistake nearby Saturn for Neptune — the latter is ...
On Sept. 17, 1789, the British astronomer William Herschel discovered Saturn's "Death Star" moon, Mimas. Of course, "Star Wars" wasn't a thing at the time, and no one had ever heard of something ...
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