Hubble Studies Star Ages in Colorful Galaxy
The Hubble Space Telescope continues to astound the scientific community with its latest observations of the spiral galaxy NGC 6000, located 102 million light-years away in the constellation Scorpius. This stunning image, captured by Hubble, showcases a vibrant display of stars in varying colors, which reflect their ages, masses, and temperatures. At the galaxy’s core, older and smaller stars emit a glowing yellow hue, while the younger, more massive stars in the spiral arms shine in brilliant blue. This color differentiation is key to understanding stellar evolution, as cooler stars, which are less massive, appear redder, whereas hotter stars are bluer.
Hubble’s observations of NGC 6000 are part of a broader survey examining the aftermath of recent supernova explosions within nearby galaxies. Notably, NGC 6000 has been the site of two supernovae: SN 2007ch and SN 2010as. By analyzing the faint glow of these stellar explosions long after they have occurred, researchers can glean insights into the progenitor stars’ masses and their potential companions. The image also captures an intriguing detail: a set of four thin lines representing an asteroid from our solar system that drifted across Hubble’s field of view during the imaging process. These lines were created from multiple exposures taken with specific filters, allowing scientists to study the galaxy’s stars in various wavelengths of light.
Hubble’s ability to capture such detailed and colorful images not only enhances our understanding of astrophysics but also highlights the telescope’s significant contributions to the field of astronomy since its launch in 1990. By providing a deeper insight into the life cycles of stars and the dynamics of galaxies, Hubble continues to inspire both scientific inquiry and public interest in the universe. As the telescope approaches its 35th anniversary, its legacy of discovery remains vital to our understanding of the cosmos, demonstrating the importance of space-based observatories in unraveling the mysteries of the universe.
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2 min read
Hubble Studies Star Ages in Colorful Galaxy
This NASA/ESA Hubble Space Telescope image features the spiral galaxy called NGC 6000.
ESA/Hubble & NASA, A. Filippenko; Acknowledgment: M. H. Özsaraç
Stars of all ages are on display in this NASA/ESA
Hubble Space Telescope
image of the sparkling spiral galaxy called NGC 6000, located 102 million light-years away in the constellation Scorpius.
NGC 6000 has a glowing yellow center and glittering blue outskirts. These colors reflect differences in the average ages, masses, and temperatures of the galaxy’s stars. At the heart of the galaxy, the stars tend to be older and smaller. Less massive stars are cooler than more massive stars, and somewhat counterintuitively, cooler stars are redder, while hotter stars are bluer. Farther out along NGC 6000’s spiral arms, brilliant star clusters host young, massive stars that appear distinctly blue.
Hubble collected the data for this image while surveying the sites of recent
supernova
explosions in nearby galaxies. NGC 6000 hosted two recent supernovae: SN 2007ch in 2007 and SN 2010as in 2010. Using Hubble’s sensitive detectors, researchers can discern the faint glow of supernovae years after the initial explosion. These observations help constrain the masses of supernovae progenitor stars and can indicate if they had any stellar companions.
By zooming in to the right side of the galaxy’s disk in this image, you can see a set of four thin yellow and blue lines. These lines are an asteroid in our solar system that was drifting across Hubble’s
field of view
as it gazed at NGC 6000. The four lines are due to four different exposures recorded one after another with slight pauses in between. Image processors combined these four exposures to create the final image. The lines appear dashed with alternating colors because each exposure used a filter to collect very specific wavelengths of light, in this case around red and blue. Having these separate exposures of particular wavelengths is important to study and compare stars by their colors — but it also makes asteroid interlopers very obvious!
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Last Updated
Nov 14, 2025
Editor
Andrea Gianopoulos
Location
NASA Goddard Space Flight Center
Related Terms
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Astrophysics
Astrophysics Division
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Goddard Space Flight Center
Spiral Galaxies
Stars
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