objects or events you can see in the sky.

Astronomers studying ultra-diffuse galaxies (UDGs) in the Hydra cluster have observed unexpected rotational movement in nearly half of the 30 galaxies examined. Spectroscopic data from the LEWIS ...

Astronomers studying ultra-diffuse galaxies (UDGs) in the Hydra cluster have observed unexpected rotational movement in nearly half of the 30 galaxies examined. Spectroscopic data from the LEWIS ...

Although the cluster is bright, you’ll have difficulty ... which lies in the sky’s largest constellation, Hydra the Water Snake. It shines at magnitude 10.8 and is slightly out-of-round ...