Hubble Studies Star Ages in Colorful Galaxy
The Hubble Space Telescope continues to captivate astronomers and space enthusiasts alike with its stunning imagery and groundbreaking discoveries. A recent observation of the spiral galaxy NGC 6000, located 102 million light-years away in the constellation Scorpius, showcases Hubble’s ability to reveal the intricate details of star formation and the life cycles of stars. This vibrant galaxy is characterized by a glowing yellow center, which indicates the presence of older, smaller stars, and glittering blue outskirts, where young, massive stars reside. These color variations not only highlight the differences in age and temperature among the stars but also serve as a visual representation of the galaxy’s dynamic ecosystem.
Hubble’s observations of NGC 6000 were part of a broader survey focused on recent supernova explosions in nearby galaxies. Notably, NGC 6000 has experienced two supernova events—SN 2007ch and SN 2010as—which offer astronomers critical insights into the progenitor stars and their potential companions. By utilizing Hubble’s sensitive detectors, researchers can capture the faint glow of these supernovae long after their initial explosions, enhancing our understanding of stellar evolution and the life cycle of galaxies. An interesting aspect of the latest image is the appearance of an asteroid from our own solar system, which can be seen as dashed lines across the galaxy’s disk. This phenomenon occurs due to Hubble’s sequential exposures, which utilized specific filters to capture different wavelengths of light, further emphasizing the telescope’s powerful capabilities in studying celestial phenomena.
Since its launch in 1990, the Hubble Space Telescope has fundamentally transformed our understanding of the universe. It has provided invaluable data that has led to significant scientific breakthroughs, such as the determination of the universe’s expansion rate and the discovery of exoplanets. Hubble’s impact extends beyond science; it has also influenced cultural perceptions of space and technology, inspiring generations of scientists and enthusiasts. As we continue to explore the cosmos, Hubble remains a vital tool, illuminating the mysteries of the universe and enhancing our appreciation for the beauty of the night sky.
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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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Media Contact
:
Claire Andreoli
(
claire.andreoli@nasa.gov
)
NASA’s
Goddard Space Flight Center
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Greenbelt, MD
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Last Updated
Nov 14, 2025
Editor
Andrea Gianopoulos
Location
NASA Goddard Space Flight Center
Related Terms
Hubble Space Telescope
Astrophysics
Astrophysics Division
Galaxies
Goddard Space Flight Center
Spiral Galaxies
Stars
The Universe
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