learned about the Rubin observatory

Watched a short video on the Vera Rubin Observatory currently under construction in Chile. Learned it has an 8.4-metre primary mirror and will use a 3.2-gigapixel imaging camera. 

Oh. The camera's diameter is almost as big as the primary at the DDO! Wow! Lots more info at the amazing wikipedia, of course.

Diagram by LSST Project/J. Andrew.