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Hubble’s Star Clusters

A collection of star clusters imaged by the Hubble Space Telescope

Red, white, and blue stars glitter like a sparkler being waved on a dark night in this image of globular...
A compact grouping of a multitude of stars shine in red, white and blue against the dark background of space. The stars are more densely collected toward the center of the cluster.
This glittering group of stars, shining through the darkness like sparks left behind by a firework, is NGC 2660 in...
A smattering of bluish-white and reddish-white stars, more plentiful on the right side of the image. On the left side shines a much brighter red-orange star.
This 100 million-year-old globular cluster is located in the Large Magellanic Cloud, a satellite galaxy of the Milky Way and...
Yellow and white stars in a star cluster float in front of a cloud of bue wispy dust and gas.
This 100 million-year-old globular cluster is located in the Large Magellanic Cloud, a satellite galaxy of the Milky Way and...
Thousands of red, white, yellow, and blue stars in a star cluster that is in front of a reddish orange cloud of gas and dust.
This striking Hubble Space Telescope image shows the densely packed globular cluster known as NGC 2210, which is situated in...
A dense cluster of stars. It is brightest and most crowded in the center, where the stars are mostly a cool white color. Moving out towards the edges the stars become more spread out and reddish until a noticeable ‘edge’ to the cluster is reached. Beyond that edge there are still many stars, more disorganized and seen on a black background. Some stars appear to be in front of the cluster.
The glittering globular cluster Terzan 12 — a vast, tightly bound collection of stars — fills the frame of this...
The glittering globular cluster Terzan 12 -- a vast, tightly bound collection of stars -- fills the frame. Yellow, gold and blue stars fill the frame against a black background.
The glittering, glitzy contents of the globular cluster NGC 6652 sparkle in this star-studded image. The core of the cluster...
A dense spherical cluster of stars. The stars merge into a bright core in the center, and spread out to the edges gradually, giving way to an empty, dark background. Most of the stars are small points of light. A few stars with cross-shaped diffraction spikes appear larger and stand out in front.
The teeming stars of the globular cluster NGC 6544 glisten in this image from the NASA/ESA Hubble Space Telescope. This...
A cluster of stars in warm and cool colors. The whole view is filled with small stars, which become much denser and brighter around a core just right of center. Most of the stars are small, but some are larger with a round, brightly colored glow and four sharp diffraction spikes. Behind the stars, a dark background can be seen.
The densely packed globular cluster NGC 6325 glistens in this image. This concentrated group of stars lies around 26,000 light...
A dense cluster of bright stars. The core of the cluster is to the left and has a distinct group of blue stars. Surrounding the core are a multitude of stars in warmer colors. These stars are very numerous near the core and become more sparse, as well as more small and distant, out to the sides of the image. A few larger stars also stand in the foreground near the edges of the image.]
The scattered stars of the globular cluster NGC 6355 are strewn across this image from the Hubble Space Telescope. NGC...
A massive cluster of blue, red, yellow, and white stars.
This image from the Hubble Space Telescope captures a small portion of the Small Magellanic Cloud (SMC). The SMC is...
Bright stars cluster at image center. they shine in shades of white, blue, and orange, and have diffraction spikes. the stars grow more sporadic at the image�s edges, and several smaller, more distant stars glow against a black backdrop of space.
Looking like a glittering swarm of buzzing bees, the stars of globular cluster NGC 6440 shine brightly in this Hubble...
Large grouping of stars, uncountable stars forming together in a giant cluster.
In the top left corner of this starry sight, the globular cluster NGC 2031 shines brilliantly. This dense group of...
A burst of stars stand out in the upper left of this image from the Hubble Spun Space Telescope. The stars spred across the dark tapestry of space, in white, blue and red colors.
This glittering gathering of stars is Pismis 26, a globular star cluster located about 23,000 light-years away. Many thousands of...
Bright blue-white stars fill the scene with a smattering or bright yellow-white stars
A twinkling group of stars dominates the center of this Hubble Space Telescope image. NGC 2002 is an open star...
A thick glob of blue-white stars and red-orange stars near the center. Smaller groupings of blue-white stars farther out.
Against a backdrop littered with tiny pinpricks of light glint a few, brighter stars. This whole collection is NGC 1858,...
A couple dozen blue-white stars glow in the foreground, while a blue cloud of dust and thousands more distant stars shine in the background.
Open cluster KMHK 1231 is a group of stars loosely bound by gravity. Seen in the upper right of this...
A thick grouping of blue-white stars in the upper right, with red-orange gas and dust in the upper half of the image. Thousands of stars dot the background throughout.
Bright, blue-white stars of the open cluster BSDL 2757 pierce through the rusty-red tones of gas and dust clouds in...
A couple of dozen bright stars in the foreground, mostly blue-white but some red-orange. Red-orange gas and dust in the background along the bottom half of the image and in the top-right corner. Thousands more stars in the background, scattered throughout.
The muted red tones of the globular cluster Liller 1 are partially obscured in this Hubble Space Telescope image by...
Bright, reddish-gold spherical swarm of stars fills the center of the image. Even brighter blue-white foreground stars dot the entire scene.
While the constituent stars of globular clusters all form at approximately the same location and time, it turns out that...
Bright, rounded cluster of white stars, some with blue or red halos.
This image from the Hubble Space Telescope captures the sparkling globular cluster NGC 6569 in the constellation Sagittarius. Hubble explored...
Stars fill the image; center holds sphere of densely packed, bright, blue-white stars; gold-colored stars, with a smattering of blue stars, surround the central sphere
Terzan 2 is a globular cluster in the constellation Scorpio. Globular clusters are stable, tightly gravitationally bound clusters of tens...
White, gold, red-orange, and blue stars fill the the image
This star-studded image from the Hubble Space Telescope shows the heart of the globular cluster NGC 6638 in the constellation...
A mass of bright blue-white stars fills the center, gold stars are dotted throughout
This scintillating image showcases the globular cluster NGC 6540 in the constellation Sagittarius. A globular cluster is a stable, tightly...
Stars fill the image. bright, blue-white stars are concentrated in the image's center. large, gold stars dot the scene.
This glittering gathering of stars is the globular cluster NGC 6558. NGC 6558 is closer to the center of the...
Bright cluster of blue-white stars at left center. frame filled with red, reddish-gold, blue, and blue-white stars
A glittering multitude of stars in the globular cluster Terzan 4 fill this image from the Hubble Space Telescope. Globular...
Reddish-gold fill the scene, bright blue-white stars dot the scene, bright white stars fill the center of the image
Many colorful stars are packed close together in this Hubble Space Telescope image of the globular cluster NGC 1805. This...
Cluster of blue- and red-hued stars against the black backdrop of space
Open star cluster NGC 330 lies around 180,000 light-years away inside the Small Magellanic Cloud. The cluster — which is...
Hundreds of blue-white stars, packed more tightly near the center of the image and becoming more scattered moving outwards. Near the center are around a dozen white stars, and scattered throughout here and there are red-orange stars. Many thousands more stars dot the background.
This Hubble Space Telescope image shows the globular cluster NGC 6380, which lies around 35,00 light-years from Earth, in the...
A thick group of many thousands of whitish stars as the center. Near the edges, where the stars are thinner, some blue and red-orange stars are visible. A very bright blue-white star shines in the foreground in the upper-left.
Terzan 1 is not a new target for Hubble — an image of the cluster was released back in 2015,...
A field of blue-white, reddish-gold, and white stars fills the view. A bright blue-white star shines brightly in the foreground on the far-right.
This ancient stellar jewelry box, a globular cluster called NGC 6397, glitters with the light from hundreds of thousands of...
clustered sprinkle of multi-colored stars
Almost like snowflakes, the stars of the globular cluster NGC 6441 sparkle peacefully in the night sky, about 13,000 light-years...
Tightly-packed grouping of whitish and reddish stars, with a few blue ones in the foreground.
Globular star cluster NGC 2203 contains lots of astronomical treats that have helped astronomers puzzle together the lifetimes of stars....
Bright specks of white and red stars against black backdrop of space
This image shows the Hubble telescope's close-up look at a swarm of 35, 000 stars near the cluster's central region....
A mass of yellow and white stars fill the upper-left corner and taper off toward the lower-right corner. Reddish-orange stars dot the scene, all on a black background.
This image from the Hubble Space Telescope reveals an ancient, glimmering ball of stars called NGC 1466. It is a...
Tightly-packed group of white stars near the center, while thinning out at the edges. Many red-orange stars are scattered throughout.
This beautiful image features the globular star cluster M75. The cluster has a highly concentrated core, with the majority of...
Large globular cluster of countless stars. The center is extremely bright and white due to the amount of stars.
M62 is known for being one of the most irregularly shaped globular clusters in our galaxy. This might be because...
A sparkling cluster of yellow and white stars, primarily concentrated near the upper right.
M28 is a globular cluster located 17,900 light-years away from Earth in the constellation Sagittarius. It was discovered by French...
The central portion of a galaxy cluster with thousands of stars that tapers off the further from the center you get.
French astronomer Charles Messier discovered the globular cluster M3 in 1764, mistaking it for a nebula without any stars. This...
A ball of thousands of white stars.
The first globular cluster to be added to the Messier catalog, M2 is located roughly 37,000 light-years from Earth in...
A ball of thousands of white stars