Webb Space Telescope captures star clusters in Cosmic Gems arc

An international team of astronomers has used the NASA/ESA/CSA James Webb Space Telescope to discover gravitationally bound star clusters when the universe was 460 million years old. This is the first discovery of star clusters ...

July's night sky notes: A hero, a crown, and possibly a nova

High in the summer sky, the constellation Hercules acts as a centerpiece for late-night stargazers. At the center of Hercules is the "Keystone," a near-perfect square shape between the bright stars Vega and Arcturus that ...

Image: Hubble captures a cosmic fossil (NGC 2005)

This NASA/ESA Hubble Space Telescope image features the globular cluster NGC 2005. It's not an unusual globular cluster in and of itself, but it is a peculiarity when compared to its surroundings.