Amazing! NASA shares the sound of a star which is 6500 light-years away | Tech News

Amazing! NASA shares the sound of a star which is 6500 light-years away

Scientists have managed to convert the visual data of a star to its sound! This is how it happened.

| Updated on: Feb 05 2023, 10:23 IST
NASA: Hubble Telescope photos reveal a massive 1701 Asteroid trails!
1/5 The Asteroid Hunter project was a citizen science project by researchers and engineers at the European Science and Technology Centre and the European Space Astronomy Centre’s Science Data Centre, in collaboration with Google and Zooniverse. (NASA)
2/5 The project’s discovery has highlighted the Hubble Telescope’s ability to capture images of faint asteroids, which was previously unknown. (REUTERS)
3/5 he images were part of Hubble’s astronomy archive which was studied by scientists and engineers to reveal the asteroid trails. It is a major step towards the new method of studying archives to study astronomy. (NASA)
4/5 The revelation also reaffirms the importance of civilian contribution in scientific discoveries and endeavours. (Hubble Space Telescope/ESA)
5/5 The Hubble Telescope is in an orbit and revolves around in space. Scientists can deduct the distance of asteroids from Earth and its orbit by calculating the position of Hubble during the observation and measuring the curvature of the streaks. (AP)
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NASA has shared the sound of a star RS Puppis. (

We can't hear the sound of stars with our ears, but they are actually performing a concert even at this moment! However, now you can hear the sound of one of the most stunning stars. It is RS Puppis, a Cepheid variable star which is around 200 times larger than our Sun and covered with dust reflecting starlight. NASA says that located about 6,500 light-years away, this star rhythmically brightens and dims over a six-week cycle.

How do scientists record the sound of a star

This star got the data sonification treatment by the sci-art outreach project SYSTEM Sounds. During the process, they took an image of the star captured by the Hubble Space Telescope and transcribed light into sound. This happened while assigning pitch to the direction from the center of the image and volume to the brightness of the light.

NASA says “In this sonification, scientists represent data in the image as sound for a new, festive way of experiencing RS Puppis. Pitch is assigned based on direction from the center; as the circle travels inward, points at the top of the circle are mapped to higher notes and points near the bottom are mapped to lower notes.” The space agency further directed that the light towards the left is predominantly audible in the left speaker, while light towards the right is primarily heard in the right speaker. Furthermore, the brightness in the image is translated into a higher volume.

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NASA's retired Kepler space telescope played a crucial role in the revolution of space observation, having provided observations of waves in tens of thousands of stars since its launch in 2009. The Transiting Exoplanet Survey Satellite (TESS), launched by NASA in April 2018, may observe sound waves in up to one million red giants, the evolved and massive stars that resemble what our Sun will be like in 5 billion years.

Did you know?

Did you know that the largest stars produce the lowest and deepest sounds, such as tubas and double basses. Conversely, small stars have high-pitched tones, similar to celestial flutes. These stars are not limited to playing a single "note," as our Sun alone has thousands of different sound waves echoing within it at any given moment.

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First Published Date: 05 Feb, 10:18 IST