Related: Night sky ... an excellent one in the Southern Hemisphere: Mercury rises nearly two hours before sunrise and appears to literally soar high into the eastern sky in the dawn twilight.

The paper, by F. Falchi at Light Pollution Science and Technology Institute in Thiene, Italy, and colleagues was titled, "The new world atlas of artificial night sky brightness." ...

Aaron Roodman, SLAC professor and deputy director and camera program lead of Rubin Observatory, said the camera will take roughly 1,000 images of the southern hemisphere sky per night, for the ...