Deep-Sky Objects, Stars Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
Exoplanets, Planets, Solar System Is Jupiter’s Moon Amalthea ever visible in amateur instruments? If so, what aperture and magnification are needed, and when is a good time to try?
Stars I read that once every second, somewhere in the universe a massive star ends its life as a supernova. How does that compare to the rate of new star formation?
