thank you NASA for these satisfying music

These are the sounds of black hole, are you sure?

This track sonifies the Chandra Deep Field South, the deepest X-ray exposure ever made, comprising over 81 days of observations with NASA’s Chandra X-ray Observatory. 

Moving from bottom to top, the colors in the image determine the tones played. More specifically, colors toward the red end of the rainbow rumble as lower tones, while colors containing more purple play as higher ones. White areas in the image are heard as white noise. Almost all of the sources represented in the image are black holes or galaxies. Most of the former are supermassive black holes that reside at the centers of galaxies. The wide range of musical frequencies represents the full range of X-ray colors collected by Chandra from this region. Note that as the piece scans upward, the stereo position of the sounds provides clues about the position of the sources from left to right. 

Credit: NASA/CXC/Penn State/B.Luo et al.; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

Chandra Deep Field Sonification

The core of our Milky Way galaxy is densely packed with gas, dust, stars, and stellar remnants, but its centerpiece is a monster black hole with a mass of 4 million Suns called Sagittarius A* (pronounced “A-star”).

This sonification tracks an image of the galactic center captured by NASA’s Chandra X-ray Observatory, Hubble Space Telescope, and Spitzer Space Telescope in X-ray, optical, and infrared light, respectively. A different instrument represents each observatory, with a xylophone for Chandra, a violin for Hubble and a soft piano for Spitzer. The translation begins on the left side of the image and moves to the right, with sounds representing the positions and brightness of the sources. The light of objects located toward the top of the image have higher pitch, while the intensity of the light controls the volume. Stars and compact sources emerge as individual notes, while extended clouds of gas and dust produce an evolving drone. A crescendo happens in the brightest region of the image, where the supermassive black hole resides. The Hubble image outlines energetic regions where stars are being born, while Spitzer’s infrared data show glowing clouds of dust containing complex structures. X-rays from Chandra reveal gas heated to millions of degrees from stellar explosions and outflows from Sagittarius A*. 

Credit: X-ray: NASA/CXC/SAO; Optical: NASA/STScI; IR: Spitzer NASA/JPL-Caltech; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

Galactic Center Sonification

The core of our Milky Way galaxy is densely packed with gas, dust, stars, and stellar remnants, but its centerpiece is a monster black hole with a mass of 4 million Suns called Sagittarius A* (pronounced “A-star”). This sonification tracks an image of the galactic center captured by NASA’s Hubble Space Telescope in optical light.

The translation begins on the left side of the image and moves to the right, with sounds representing the positions and brightness of the sources. The light of objects located toward the top of the image take on higher pitches, while their brightness controls the volume. Hubble’s view of the galactic center outlines energetic regions where stars are being born. 

Credit: Optical: NASA/STScI; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

Galactic Center Optical Light Sonification

Messier 51 (M51) is perhaps better known by its nickname, the Whirlpool Galaxy, because its face-on orientation to us highlights its winding spiral arms. This gives our telescopes a different perspective on a spiral galaxy similar to our Milky Way, whose structure we cannot observe directly since we’re inside it. The sonification tracks along a line emanating from the galaxy's core to the edge of the image and scanning clockwise. The light encountered by this line has been mapped to the notes of a melodic minor scale. The sequence represents infrared data from NASA’s Spitzer Space Telescope. 

At this wavelength, the spiral arms are prominent, so the pitch creeps upward as the spiral extends farther from the core. The bright core, which harbors a supermassive black hole, produces a constant low hum punctuated by short sounds from compact bright sources within the galaxy. 

Credit: IR: NASA/JPL-Caltech/ Univ. of AZ/R. Kennicutt; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

M51 Infrared Sonification

Messier 51 (M51) is perhaps better known by its nickname, the Whirlpool Galaxy, because its face-on orientation to us highlights its winding spiral arms. This gives our telescopes a different perspective on a spiral galaxy similar to our Milky Way, whose structure we cannot observe directly since we’re inside it. The sonification tracks along a line emanating from the galaxy's core to the edge of the image and scanning clockwise. The light encountered by this line has been mapped to the notes of a melodic minor scale. The sequence represents optical data from NASA’s Hubble Space Telescope. 

At this wavelength, the spiral arms are prominent, so the pitch creeps upward as the spiral stretches farther from the core. The bright core, which harbors a supermassive black hole, produces a constant low hum punctuated by short sounds from compact bright sources within the galaxy. 

Credit: Optical: NASA/ESA/S. Beckwith & Hubble Heritage Team (STScI/AURA); Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

M51 Optical Light Sonification

Messier 51 (M51) is perhaps better known by its nickname, the Whirlpool Galaxy, because its face-on orientation to us highlights its winding spiral arms. This gives our telescopes a different perspective on a spiral galaxy similar to our Milky Way, whose structure we cannot observe directly since we’re inside it. The sonification tracks along a line emanating from the galaxy's core to the edge of the image and scanning clockwise. The light encountered by this line has been mapped to the notes of a melodic minor scale. The sequence represents ultraviolet data from NASA’s Galaxy Evolution Explorer. 

The bright core, which harbors a supermassive black hole, produces a constant low hum punctuated by short sounds from compact bright sources within the galaxy. 

Credit: UV: NASA/JPL-Caltech; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

M51 Ultraviolet Sonification

Messier 51 (M51) is perhaps better known by its nickname of the Whirlpool Galaxy because its face-on orientation to Earth reveals its wound-up spiral arms. This gives telescopes here a view of another spiral galaxy similar to our Milky Way, whose structure we cannot observe directly from our position within it. The sonification tracks along a line emanating from the galaxy's core to the edge of the image and scanning clockwise. The light encountered by this line has been mapped to the notes of a melodic minor scale. The sequence represents X-ray data from NASA’s Chandra X-ray Observatory.

The bright core, which harbors a supermassive black hole, produces a constant low hum punctuated by short sounds from compact bright sources within the galaxy, including many stellar-sized black holes. 

Credit: X-ray: NASA/CXC/Wesleyan Univ./R.Kilgard et al; Sonification: NASA/CXC/SAO/Kimberly Arcand, SYSTEM Sounds (Matt Russo, Andrew Santaguida)

M51 X-ray Sonification

Listen to the rhythms of the pulsating red giant star called Edasich based on brightness measurements from NASA’s Transiting Exoplanet Survey Satellite. Just below the surfaces of these stars, hot gas rises, cools, and then sinks, where it heats up again, much like a pan of boiling water on a hot stove. This motion produces waves of changing pressure – sound waves. The interaction of these waves results in orderly motion called standing waves that create measurable changes in the star’s brightness. Larger stars produce longer oscillations and thus have deeper tones. To produce audible tones, astronomers multiplied its oscillation frequency by 3 million times. (Credit: NASA/MIT/TESS and Ethan Kruse (USRA), M. Hon et al., 2021)

Red Giant Star Edasich Pulsations

Studied by scientists for decades, the black hole in Messier 87, or M87, gained celebrity status in science after the first release from the Event Horizon Telescope (EHT) project in 2019. This new sonification does not feature the EHT data, but rather looks at data from other telescopes that observed M87 on much wider scales at roughly the same time. The image in visual form contains three panels that are, from top to bottom, X-rays from NASA’s Chandra X-ray Observatory, optical light from NASA’s Hubble Space Telescope, and radio waves from the Atacama Large Millimeter Array in Chile. The sonification scans across the three-tiered image from left to right, with each wavelength mapped to a different range of audible tones. Radio waves are mapped to lowest tones, optical data to medium tones, and X-rays detected by Chandra to the highest tones. The brightest part of the image corresponds to the loudest portion of the sonification, which is where astronomers find the 6.5 billion solar mass black hole that EHT imaged.

Learn more: https://chandra.si.edu/photo/2022/sonify5/ 

Sonification Credit: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida)

Black Hole Sonification: M87

Pascal Nanlohy is a pianist. In addition to numerous pop productions, he has chosen to create music that he loves. Inspired by pianists such as David Foster, Ludovico Einaudi, and Robbie Buchanan, he aims to convey nothing but music to the world that embodies love, inspiration, and wishes to take the listener into his world of music.

One Goodbye

Credit: NASA/CXC/SAO/K. Arcand, M. Russo & A. Santaguida

Chandra X-ray Observatory: Galactic Sonification

Hello, we’re NASA. You may have seen our astronauts, rocket launches, or Mars rovers — but have you heard our sounds? From interviews with astronauts and engineers to stories that take you on a tour of the galaxy, NASA’s audio offerings let you experience the thrill of space exploration without ever leaving Earth.

Galactic Center Sonification

NASA

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