A good crowd watching the transit of Mercury through the telescopes at Keck Observatory on Nov 11, 2019
A good crowd watching the transit of Mercury through the telescopes at Keck Observatory on Nov 11, 2019
TransitCrowd20191111
When you want to see the stars, find someplace dark
A good crowd watching the transit of Mercury through the telescopes at Keck Observatory on Nov 11, 2019
A good crowd watching the transit of Mercury through the telescopes at Keck Observatory on Nov 11, 2019