Scanning…✅
Rubin Observatory is a “survey telescope”—but what does that mean?
Telescopes come in many forms. Some are built to study small areas of sky, in fine detail and high resolution.
Survey telescopes, however, map the cosmos by imaging the entire night sky🧵
With these general pictures, scientists can study many different things using the same data.
One scientist could use the images to study stationary galaxies. Another could use the same images to look for objects that change or move in the sky, like supernovae or asteroids.