Listen to the universe with your ears: NASA turns the “Cat’s Eye Galaxy” into a piece of music
It’s basically an immersive journey through the cosmos
Summary
- To mark the United States’ 250th anniversary, NASA has released red, white and blue cosmic images, unveiling four celestial works in total.
- NGC 4736 (the Cat’s Eye Galaxy) is known for its bright central starburst ring and is also an important case study in dark matter research.
- Through sonification (turning cosmic data into sound), NASA converts telescope observations into music instead of recording actual sounds in space.
- This sonification technology not only offers a new immersive way to experience the universe, it also improves the accessibility and inclusivity of astronomy content.
We’ve long come to know the universe through images, but what if galaxies could one day be “heard,” too? This summer, to celebrate the United States’ 250th anniversary, NASA released a series of cosmic images re-rendered in the red, white, and blue of the American flag. One of the featured works is the spiral galaxy NGC 4736 in Canes Venatici (Messier 94, also known as the Cat’s Eye Galaxy). Through NASA’s long-running sonification project, it has been translated into a richly layered cosmic composition, allowing people to explore this distant stretch of sky through sound for the first time.
NASA reimagines the universe in red, white, and blue: Four celestial images with special meaning
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To mark the United States’ 250th anniversary, NASA brought together data from the Chandra X-ray Observatory, James Webb Space Telescope, Hubble Space Telescope, and other observations to release four cosmic images centered on red, white, and blue. Through images captured at different wavelengths, NASA hopes to show the universe’s spectacular appearance at different energy levels, extending this anniversary celebration from Earth into deep space.
The “Cat’s Eye Galaxy” is more than dreamy: Its dark matter mystery has made it a research focus
Images from ig / @nasa
The most eye-catching of the four is NGC 4736 in Canes Venatici. About 16 million light-years from Earth and roughly 30,000 light-years across, this spiral galaxy is known for its bright central core and surrounding Starburst Ring. Large numbers of new stars continually form within this ring-shaped structure, creating its highly recognizable swirling appearance. Beyond its beautiful exterior, it has also drawn attention for dark matter research.
How does NASA turn the universe into music?
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Along with these new visuals, NASA has continued to advance its Sonification project in recent years, aiming to transform astronomical observation data that could previously only be seen into a listening experience. Rather than recording sounds from space directly, the project translates raw data collected by telescopes into music. For example, light at different wavelengths and frequencies is mapped to different pitches and timbres, while a light source’s brightness is translated into volume. As the scan moves across the image, stars, nebulae, and galaxies intertwine to form a unique melody.
This technology also allows people with visual impairments to understand astronomical images through sound, making space exploration more diverse and inclusive. This time, put on your headphones and listen to the Cat’s Eye Galaxy with NASA, experiencing another side of the universe.
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