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By NASA
8 Min Read NASA Telescopes Tune Into a Black Hole Prelude, Fugue
The first sonification features WR124, an extremely bright, massive star. Here, the star is shown in a short-lived phase preceding the possible creation of a black hole. NASA released three new pieces of cosmic sound Thursday that are associated with the densest and darkest members of our universe: black holes. These scientific productions are sonifications — or translations into sound — of data collected by NASA telescopes in space including the Chandra X-ray Observatory, James Webb Space Telescope, and Imaging X-ray Polarimetry Explorer (IXPE).
This trio of sonifications represents different aspects of black holes and black hole evolution. WR124 is an extremely bright, short-lived massive star known as a Wolf-Rayet that may collapse into a black hole in the future. SS 433 is a binary, or double system, containing a star like our Sun in orbit with either a neutron star or a black hole. The galaxy Centaurus A has an enormous black hole in its center that is sending a booming jet across the entire length of the galaxy. Data from Chandra and other telescopes were translated through a process called “sonification” into sounds and notes. This new trio of sonifications represents different aspects of black holes. Black holes are neither static nor monolithic. They evolve over time, and are found in a range of sizes and environments.
WR 124
Credit: X-ray: NASA/CXC/SAO; Infrared: (Herschel) ESA/NASA/Caltech, (Spitzer) NASA/JPL/Caltech, (WISE) NASA/JPL/Caltech; Infrared: NASA/ESA/CSA/STScI/Webb ERO Production Team; Image processing: NASA/CXC/SAO/J. Major; Sonification: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida) The first movement is a prelude to the potential birth of a black hole. WR124 is an extremely bright, short-lived massive star known as a Wolf-Rayet at a distance of about 28,000 light-years from Earth. These stars fling their outer layers out into space, creating spectacular arrangements seen in an image in infrared light from the Webb telescope. In the sonification of WR124, this nebula is heard as flutes and the background stars as bells. At the center of WR124, where the scan begins before moving outward, is a hot core of the star that may explode as a supernova and potentially collapse and leave behind a black hole in its wake. As the scan moves from the center outward, X-ray sources detected by Chandra are translated into harp sounds. Data from NASA’s James Webb Space Telescope is heard as metallic bell-like sounds, while the light of the central star is mapped to produce the descending scream-like sound at the beginning. The piece is rounded out by strings playing additional data from the infrared telescopic trio of ESA’s (European Space Agency’s) Herschel Space Telescope, NASA’s retired Spitzer Space Telescope, and NASA’s retired Wide Image Survey Explorer (WISE) as chords.
SS 433
Credit: X-ray: (IXPE): NASA/MSFC/IXPE; (Chandra): NASA/CXC/SAO; (XMM): ESA/XMM-Newton; IR: NASA/JPL/Caltech/WISE; Radio: NRAO/AUI/NSF/VLA/B. Saxton. (IR/Radio image created with data from M. Goss, et al.); Image Processing/compositing: NASA/CXC/SAO/N. Wolk & K. Arcand; Sonification: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida) In the second movement of this black hole composition, listeners can explore a duet. SS 433 is a binary, or double, system about 18,000 light-years away that sings out in X-rays. The two members of SS 433 include a star like our Sun in orbit around a much heavier partner, either a neutron star or a black hole. This orbital dance causes undulations in X-rays that Chandra, IXPE, and ESA’s XMM-Newton telescopes are tuned into. These X-ray notes have been combined with radio and infrared data to provide a backdrop for this celestial waltz. The nebula in radio waves resembles a drifting manatee, and the scan sweeps across from right to left. Light towards the top of the image is mapped to higher-pitch sound, with radio, infrared, and X-ray light mapped to low, medium, and high pitch ranges. Bright background stars are played as water-drop sounds, and the location of the binary system is heard as a plucked sound, pulsing to match the fluctuations due to the orbital dance.
Centarus A
Credit: X-ray: (Chandra) NASA/CXC/SAO, (IXPE) NASA/MSFC; Optical: ESO; Image Processing: NASA/CXC/SAO/K. Arcand, J. Major, and J. Schmidt; Sonification: NASA/CXC/SAO/K.Arcand, SYSTEM Sounds (M. Russo, A. Santaguida) The third and final movement of the black hole-themed sonifications crescendos with a distant galaxy known as Centaurus A, about 12 million light-years away from Earth. At the center of Centaurus A is an enormous black hole that is sending a booming jet across the entire length of the galaxy. Sweeping around clockwise from the top of the image, the scan encounters Chandra’s X-rays and plays them as single-note wind chimes. X-ray light from IXPE is heard as a continuous range of frequencies, producing a wind-like sound. Visible light data from the European Southern Observatory’s MPG telescope shows the galaxy’s stars that are mapped to string instruments including foreground and background objects as plucked strings.
For more NASA sonifications and information about the project, visit https://chandra.si.edu/sound/
These sonifications were led by the Chandra X-ray Center (CXC), with support from NASA’s Marshall Space Flight Center and NASA’s Universe of Learning program, which is part of the NASA Science Activation program. The collaboration was driven by visualization scientist Kimberly Arcand (CXC), astrophysicist Matt Russo, and musician Andrew Santaguida (both of the SYSTEM Sounds project), along with consultant Christine Malec.
NASA’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science from Cambridge Massachusetts and flight operations from Burlington, Massachusetts. NASA’s Universe of Learning materials are based upon work supported by NASA under cooperative agreement award number NNX16AC65A to the Space Telescope Science Institute, working in partnership with Caltech/IPAC, Center for Astrophysics | Harvard & Smithsonian, and NASA’s Jet Propulsion Laboratory.
The agency’s IXPE is a collaboration between NASA and the Italian Space Agency with partners and science collaborators in 12 countries. The IXPE mission is led by Marshall. BAE Systems, Inc., headquartered in Falls Church, Virginia, manages spacecraft operations together with the University of Colorado’s Laboratory for Atmospheric and Space Physics in Boulder.
To learn more about NASA’s space telescopes, visit:
https://science.nasa.gov/universe
Read more from NASA’s Chandra X-ray Observatory Learn more about the Chandra X-ray Observatory and its mission here:
https://www.nasa.gov/chandra
https://chandra.si.edu
Visual Description
This release features three sonifications related to black holes, presented as soundtracks to short videos. Each sonification video features a composite image representing a different aspect of the life of a black hole. These images are visualizations of data collected by NASA telescopes. During each video, a line sweeps through the image. When the line encounters a visual element, it is translated into sound according to parameters established by visualization scientist Kimberly Arcand, astrophysicist Matt Russo, musician Andrew Santaguida, and consultant Christine Malec.
The first sonification features WR124, an extremely bright, massive star. Here, the star is shown in a short-lived phase preceding the possible creation of a black hole. At the center of the composite image is the large gleaming star in white and pale blue. The star sits at the heart of a mottled pink and gold cloud, its long diffraction spikes extending to the outer edges. Also residing in the cloud are other large gleaming stars, glowing hot-pink dots, and tiny specks of blue and white light. In this sonification, the sound activation line is an ever-expanding circle which starts in the center of the massive star and continues to grow until it exits the frame.
The second sonification features SS 433, a binary star system at the center of a supernova remnant known as the Manatee Nebula. Visually, the translucent, blobby teal nebula does, indeed, resemble a bulbous walrus or manatee, floating in a red haze packed with distant specs of light. Inside the nebula is a violet streak, a blue streak, and a large bright dot. The dot, represented by a plucking sound in the sonification, is the binary system at the heart of the nebula. In this sonification, the vertical activation line begins at our right edge of the frame, and sweeps across the image before exiting at our left.
The third and final sonification features Centaurus A, a distant galaxy with an enormous black hole emitting a long jet of high-energy particles. The black hole sits at the center of the composite image, represented by a brilliant white light. A dark, grainy, oblong cloud cuts diagonally across the black hole from our lower left toward our upper right. A large, faint, translucent blue cloud stretches from our upper left to our lower right. And the long, thin jet, also in translucent blue, extends from the black hole at the center toward the upper lefthand corner. In this sonification, the activation line rotates around the image like the hand of a clock. It begins at the twelve o’clock position, and sweeps clockwise around the image.
News Media Contact
Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu
Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov
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Last Updated May 08, 2025 EditorBeth RidgewayLocationMarshall Space Flight Center Related Terms
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By NASA
This NASA/ESA Hubble Space Telescope image features the globular cluster Messier 72 (M72).ESA/Hubble & NASA, A. Sarajedini, G. Piotto, M. Libralato As part of ESA/Hubble’s 35th anniversary celebrations, the European Space Agency (ESA) shared new images that revisited stunning, previously released Hubble targets with the addition of the latest Hubble data and new processing techniques.
ESA/Hubble released new images of NGC 346, the Sombrero Galaxy, and the Eagle Nebula earlier in the month. Now they are revisiting the star cluster Messier 72 (M72).
M72 is a collection of stars, formally known as a globular cluster, located in the constellation Aquarius roughly 50,000 light-years from Earth. The intense gravitational attraction between the closely packed stars gives globular clusters their regular, spherical shape. There are roughly 150 known globular clusters associated with the Milky Way galaxy.
The striking variety in the color of the stars in this image of M72, particularly compared to the original image, results from the addition of ultraviolet observations to the previous visible-light data. The colors indicate groups of different types of stars. Here, blue stars are those that were originally more massive and have reached hotter temperatures after burning through much of their hydrogen fuel; the bright red objects are lower-mass stars that have become red giants. Studying these different groups help astronomers understand how globular clusters, and the galaxies they were born in, initially formed.
Pierre Méchain, a French astronomer and colleague of Charles Messier, discovered M72 in 1780. It was the first of five star clusters that Méchain would discover while assisting Messier. They recorded the cluster as the 72nd entry in Messier’s famous collection of astronomical objects. It is also one of the most remote clusters in the catalog.
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By NASA
Explore Hubble Hubble Home Overview About Hubble The History of Hubble Hubble Timeline Why Have a Telescope in Space? Hubble by the Numbers At the Museum FAQs Impact & Benefits Hubble’s Impact & Benefits Science Impacts Cultural Impact Technology Benefits Impact on Human Spaceflight Astro Community Impacts Science Hubble Science Science Themes Science Highlights Science Behind Discoveries Hubble’s Partners in Science Universe Uncovered Explore the Night Sky Observatory Hubble Observatory Hubble Design Mission Operations Missions to Hubble Hubble vs Webb Team Hubble Team Career Aspirations Hubble Astronauts News Hubble News Social Media Media Resources Multimedia Multimedia Images Videos Sonifications Podcasts e-Books Online Activities Lithographs Fact Sheets Posters Hubble on the NASA App Glossary More 35th Anniversary Online Activities 2 min read
Hubble Visits Glittering Cluster, Capturing Its Ultraviolet Light
This NASA/ESA Hubble Space Telescope image features the globular cluster Messier 72 (M72). ESA/Hubble & NASA, A. Sarajedini, G. Piotto, M. Libralato As part of ESA/Hubble’s 35th anniversary celebrations, the European Space Agency (ESA) shared new images that revisited stunning, previously released Hubble targets with the addition of the latest Hubble data and new processing techniques.
ESA/Hubble released new images of NGC 346, the Sombrero Galaxy, and the Eagle Nebula earlier in the month. Now they are revisiting the star cluster Messier 72 (M72).
M72 is a collection of stars, formally known as a globular cluster, located in the constellation Aquarius roughly 50,000 light-years from Earth. The intense gravitational attraction between the closely packed stars gives globular clusters their regular, spherical shape. There are roughly 150 known globular clusters associated with the Milky Way galaxy.
The striking variety in the color of the stars in this image of M72, particularly compared to the original image, results from the addition of ultraviolet observations to the previous visible-light data. The colors indicate groups of different types of stars. Here, blue stars are those that were originally more massive and have reached hotter temperatures after burning through much of their hydrogen fuel; the bright red objects are lower-mass stars that have become red giants. Studying these different groups help astronomers understand how globular clusters, and the galaxies they were born in, initially formed.
Pierre Méchain, a French astronomer and colleague of Charles Messier, discovered M72 in 1780. It was the first of five star clusters that Méchain would discover while assisting Messier. They recorded the cluster as the 72nd entry in Messier’s famous collection of astronomical objects. It is also one of the most remote clusters in the catalog.
Facebook logo @NASAHubble @NASAHubble Instagram logo @NASAHubble Media Contact:
Claire Andreoli (claire.andreoli@nasa.gov)
NASA’s Goddard Space Flight Center, Greenbelt, MD
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Last Updated Apr 25, 2025 Editor Andrea Gianopoulos Location NASA Goddard Space Flight Center Related Terms
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By NASA
NASA’s Acting Associate Administrator for NASA’s Exploration Systems Development Mission Directorate Lori Glaze, right, and NASA Langley Acting Center Director Trina Dyal spoke at a dedication ceremony for NASA Langley’s Artemis Moon Tree at the center March 12.NASA/Ryan Hill A tree that sprouted from a seed that journeyed around the Moon and back is growing at NASA’s Langley Research Center in Hampton, Virginia.
NASA’s Acting Associate Administrator for NASA’s Exploration Systems Development Mission Directorate Lori Glaze and NASA Langley Acting Center Director Trina Dyal spoke at a dedication ceremony for the Artemis Moon Tree, a loblolly pine, at the center March 12.
“I wanted to quote an old Greek proverb that more or less says something like, ‘Society grows when its elders plant trees whose shade they know they shall never sit in,’ ” said Glaze. “I love that. We always talk about how we stand on the shoulders of giants. Those giants planted seeds, and we are still benefiting from the tremendous roots of those trees,”
The young tree, only about two feet tall right now, is growing in an area between NASA Langley’s Integrated Engineering Services Building and its Measurement Systems Laboratory. The pine is surrounded by a wire plant protector. A yellow label identifies the species and the location of the U.S. Department of Agriculture Forest Services nursery where the seedling was grown — Charles E. Bessey Nursery in Halsey, Nebraska. A small plaque marks its status as a Moon Tree.
“This, we plant here for all future generations to be inspired and to continue on the amazing legacy of what we’re doing,” said Glaze. “Our return to the lunar surface and our journey to Mars through the Artemis campaign is really going to lay the foundation for that future of exploration that right now we’re only dreaming about. With your help, through Langley and the rest of our NASA colleagues and partners, we’re going to achieve those visions.”
NASA Langley’s Artemis Moon Tree is a loblolly pine.NASA/Ryan Hill The loblolly seed was one of many that flew on the Artemis I mission Nov. 16 to Dec. 11, 2022 — journeying 270,000 miles from Earth aboard the Orion spacecraft. NASA’s Office of STEM Engagement partnered with the Forest Services to fly the seeds aboard Artemis I as part of a national STEM Engagement and conservation education initiative.
In addition to loblolly pines, tree species on the flight included sycamores, sweetgums, Douglas firs, and giant sequoias. The Forest Services germinated the seeds.
Locally, NASA Langley’s loblolly pine is one of three Artemis Moon Trees. The Virginia Living Museum in Newport News and the Virginia Zoo in Norfolk were also selected as Moon Tree stewards, and also received loblolly pines.
The Artemis Moon Trees take inspiration from their Apollo precursors. In 1971, NASA astronaut Stuart Roosa, the command module pilot for the Apollo 14 mission and a former U.S. Department of Agriculture Forest Services smoke jumper, carried tree seeds into lunar orbit. The Apollo 14 Moon Trees were disseminated to national monuments and dignitaries around the world, with a large number distributed as part of the nation’s bicentennial event.
One of those Moon Trees, a sycamore, was planted at Albert W. Patrick III Elementary School in the Fox Hill area of Hampton in 1976. Sixth grader Marjorie White wrote a poem called “A Tree Lives” that won a contest to earn the honor.
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By NASA
5 Min Read Webb Maps Full Picture of How Phoenix Galaxy Cluster Forms Stars
Spectroscopic data collected from NASA’s James Webb Space Telescope is overlayed on an image of the Phoenix cluster that combines data from NASA’s Hubble Space Telescope, Chandra X-ray Observatory and the Very Large Array (VLA) radio telescope. Credits:
NASA, CXC, NRAO, ESA, M. McDonald (MIT), M. Reefe (MIT), J. Olmsted (STScI) Discovery proves decades-old theory of galaxy feeding cycle.
Researchers using NASA’s James Webb Space Telescope have finally solved the mystery of how a massive galaxy cluster is forming stars at such a high rate. The confirmation from Webb builds on more than a decade of studies using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, as well as several ground-based observatories.
The Phoenix cluster, a grouping of galaxies bound together by gravity 5.8 billion light-years from Earth, has been a target of interest for astronomers due to a few unique properties. In particular, ones that are surprising: a suspected extreme cooling of gas and a furious star formation rate despite a roughly 10 billion solar mass supermassive black hole at its core. In other observed galaxy clusters, the central supermassive black hole powers energetic particles and radiation that prevents gas from cooling enough to form stars. Researchers have been studying gas flows within this cluster to try to understand how it is driving such extreme star formation.
Image A: Phoenix Cluster (Hubble, Chandra, VLA Annotated)
Spectroscopic data collected from NASA’s James Webb Space Telescope is overlayed on an image of the Phoenix cluster that combines data from NASA’s Hubble Space Telescope, Chandra X-ray Observatory and the Very Large Array (VLA) radio telescope. Webb’s powerful sensitivity in the mid-infrared detected the cooling gas that leads to a furious rate of star formation in this massive galaxy cluster. Credit: NASA, CXC, NRAO, ESA, M. McDonald (MIT), M. Reefe (MIT), J. Olmsted (STScI) “We can compare our previous studies of the Phoenix cluster, which found differing cooling rates at different temperatures, to a ski slope,” said Michael McDonald of the Massachusetts Institute of Technology in Cambridge, principal investigator of the program. “The Phoenix cluster has the largest reservoir of hot, cooling gas of any galaxy cluster — analogous to having the busiest chair lift, bringing the most skiers to the top of the mountain. However, not all of those skiers were making it down the mountain, meaning not all the gas was cooling to low temperatures. If you had a ski slope where there were significantly more people getting off the ski lift at the top than were arriving at the bottom, that would be a problem!”
To date, in the Phoenix cluster, the numbers weren’t adding up, and researchers were missing a piece of the process. Webb has now found those proverbial skiers at the middle of the mountain, in that it has tracked and mapped the missing cooling gas that will ultimately feed star formation. Most importantly, this intermediary warm gas was found within cavities tracing the very hot gas, a searing 18 million degrees Fahrenheit, and the already cooled gas around 18,000 degrees Fahrenheit.
The team studied the cluster’s core in more detail than ever before with the Medium-Resolution Spectrometer on Webb’s Mid-Infrared Instrument (MIRI). This tool allows researchers to take two-dimenstional spectroscopic data from a region of the sky, during one set of observations.
“Previous studies only measured gas at the extreme cold and hot ends of the temperature distribution throughout the center of the cluster,” added McDonald. “We were limited — it was not possible to detect the ‘warm’ gas that we were looking for. With Webb, we could do this for the first time.”
Image B: Phoenix Cluster (Hubble, Chandra, VLA)
This image of the Phoenix cluster combines data from NASA’s Hubble Space Telescope, Chandra X-ray Observatory, and the Very Large Array radio telescope. X-rays from Chandra depict extremely hot gas in purple. Optical light data from Hubble show galaxies in yellow, and filaments of cooler gas where stars are forming in light blue. Outburst generated jets, represented in red, are seen in radio waves by the VLA radio telescope. NASA, CXC, NRAO, ESA, M. McDonald (MIT). A Quirk of Nature
Webb’s capability to detect this specific temperature of cooling gas, around 540,000 degrees Fahrenheit, is in part due to its instrumental capabilities. However, the researchers are getting a little help from nature, as well.
This oddity involves two very different ionized atoms, neon and oxygen, created in similar environments. At these temperatures, the emission from oxygen is 100 times brighter but is only visible in ultraviolet. Even though the neon is much fainter, it glows in the infrared, which allowed the researchers to take advantage of Webb’s advanced instruments.
“In the mid-infrared wavelengths detected by Webb, the neon VI signature was absolutely booming,” explained Michael Reefe, also of the Massachusetts Institute of Technology, lead author on the paper published in Nature. “Even though this emission is usually more difficult to detect, Webb’s sensitivity in the mid-infrared cuts through all of the noise.”
The team now hopes to employ this technique to study more typical galaxy clusters. While the Phoenix cluster is unique in many ways, this proof of concept is an important step towards learning about how other galaxy clusters form stars.The James Webb Space Telescope is the world’s premier space science observatory. Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and CSA (Canadian Space Agency).
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Media Contacts
Laura Betz – laura.e.betz@nasa.gov
NASA’s Goddard Space Flight Center, Greenbelt, Md.
Hannah Braun hbraun@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
Christine Pulliam – cpulliam@stsci.edu
Space Telescope Science Institute, Baltimore, Md.
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