Hubble Space Telescope captures chaotic globular cluster near Milky Way's core - Space.com

A stunning Hubble Space Telescope image shows the chaotic and densely packed stars of the globular cluster NGC 6355.

Globular clusters like this one are home to tens of thousands to millions of stars, all tightly bound by mutual gravitational attraction.

The globular cluster NGC 6355, located in the inner Milky Way, is densely packed with tens of thousands to millions of stars.

This image of NGC 6355, which used data from the Hubble Space Telescope's Advanced Camera for Surveys and Wide Field Camera 3, captures the stunning details of a dense and bright heart of stars packed in the center of the globular cluster, according to the European Space Agency(ESA), a partner on the mission.

The central red and blue stars of NGC 6355 can be distinguished clearly in the image, demonstrating the tremendous observational power of Hubble, which has revolutionized the study of globular clusters.

In 2021, Hubble observations allowed astronomers to make the first measurement of black holes in the core-collapsed globular cluster NGC 6397.