A new trail in this southern Arizona city plots the most visitor-friendly astronomy stops—and there are plenty to choose from ...

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 ...

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." ...