Star Clusters

January 12, 2026

Researchers at the University of British Columbia and Dalhousie University have found a young galaxy cluster that appears…

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December 19, 2025

For the first time, astronomers using NASA’s Fermi Gamma-ray Space Telescope have traced a budding outflow of gas…

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A close-in view of a spiral galaxy that faces the viewer. Brightly lit spiral arms swing outward through the galaxy’s disk, starting from an elliptical region in its center. Thick strands of dark reddish dust spread across the disk, primarily along the spiral arms. The arms also contain many glowing, pink-red spots where stars form and clumps of bright-blue star clusters. Beyond its spiral arms, the galaxy is a bit fainter and speckled with blue stars.

November 21, 2025

Today’s NASA/ESA Hubble Space Telescope image features the spiral galaxy NGC 4535, which is situated about 50 million…

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$Stars in a star cluster shine brightly blue, with four-pointed diffraction spikes radiating from them. The center shows a small, crowded group of stars while a larger group is partially visible on the right side of the image. The nebula is mostly thick, smoky clouds of gas, lit up in blue tones by the stars. Clumps of dust hover before and around the stars; they are mostly dark but lit around their edges where the starlight erodes them.$

September 29, 2025

This NASA/ESA Hubble Space Telescope image released on Sept. 12, 2025, features a cloudy starscape from an impressive star cluster.…

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Scores of gleaming white orbs and tiny specks pack the blackness of space, surrounded by a purple haze, and mottled golden clouds.

September 16, 2025

Westerlund 1, the biggest and closest “super” star cluster to Earth, dazzles in this image released on July…

Astronomers spot a hot galaxy cluster that defies existing cosmic theory

NASA’s Fermi Spots Young Star Cluster Blowing Gamma-Ray Bubbles

Hubble Seeks Clusters in ‘Lost Galaxy’

Hubble Surveys Cloudy Cluster – NASA

An Eye-catching Star Cluster – NASA