A Computer Simulation of a Compact Group

Star Clusters Born Among the Interacting Galaxies of Stephan's Quintet

This close-up view of Stephan's Quintet, a group of five galaxies, reveals a string of bright star clusters that sparkles like a diamond necklace. The clusters, each harboring up to millions of stars, were born from the violent interactions between some members of the group. The...

A Cluster of Galaxies – Coma Cluster [NOAO]

Hickson Compact Group 87: A Group of Four Galaxies

Globular Star Cluster NGC 6093 (M80)

Stephan's Quintet [NOAO]

Stephan's Quintet

Stephan's Quintet

Stephan's Quintet

HubbleMinute: Battle Royale in Stephan's Quintet

Astronomers studying the compact galaxy group Stephan's Quintet have seen creative destruction in the many collisions taking place among its galaxies. This HubbleMinute discusses what astronomers are learning and hope to learn from examining the quintet.

Galactic Collision Simulation

Animation depicts the wrenching processes unleashed when two galaxies collide. This animation is a rendering of a data simulation that astronomers use to study interacting and colliding galaxies.

Multiple-Galaxy Collision Simulation

This animation studies the effects of multiple galaxies colliding over time. Astronomers use such simulations to develop theories about the origin of today's galaxies.

Interview with Dr. Jane Charlton, Astronomer

Dr. Charlton describes the action seen in Hubble Space Telescope images of the compact galaxy group Stephan's Quintet.