A few Chen Ziyou said on the Internet that he accidentally clicked on this “song” during an insomniac night, and the hypnotic effect was surprisingly good, not only slept well, but also dreamed that he was floating in space in a spaceship.
To be precise, this is not a song, but a 31-minute long audio. According to various sources, this audio belongs to the album “Miranda: NASA – Voyager Space Sounds”, released in 1989, written by NASA – yes, you know the National Aeronautics and Space Administration NASA. The “Miranda: NASA- Voyager Space Sounds” album was released in 1989 by NASA – yes, the NASA you know.
The album’s title, “Miranda,” is the name of the smallest of Uranus’ five major moons, and the audio was “recorded” by NASA’s unmanned spacecraft Voyager 2, which was launched in 1977 and is still in operation, when it flew over Miranda’s southern hemisphere in January 1986.
The first Time I saw it, I saw it. (Source: NASA/JPL-Caltech, public domain, via Wikimedia Commons)
The sound is a bit like listening to the wind passing through a long channel, but also a bit like an amplified version of the sound that can be heard in the shell. Some people may find it a bit scary or even frightening to listen to, but some people still find it very romantic.
Because so far, Miranda has only been probed by Voyager 2, and has only left a closeup photo of the only side facing the sun, so Miranda has always been mysterious in people’s image.
In addition to the sounds collected from space similar to Miranda, there are also sounds such as rockets lifting off, ground crew issuing instructions, and even Armstrong’s “That’s one small step for man, one giant leap for mankind” line during the moon landing. mankind (it’s one small step for man, one giant leap for mankind)”, and so on, have been made into “works” by NASA for public release.
But it is the sounds from space that are of most interest – there is a page on NASA’s website dedicated to its audio content and available for download, as well as the official SoundCloud homepage, which shows that the top ten most popular NASA “works” belong to this category.
The first one, with nearly 520,000 plays, is the sound collected by the Mars rover Perseverance of NASA’s Mars 2020 mission during a flight check of the camera and microphone system, released just two months ago.
The Mars rover Perseverance (art concept). (Source: NASA)
This is what some people say about NASA: As you know, NASA is an American label that focuses on releasing experimental Music for ambient music.
How do you hear the sound in space?
We have all learned from textbooks: the universe is a vacuum environment, there is no air, and the propagation of sound is dependent on the vibration of air and other media to achieve, so sound can not be transmitted in the universe, people can not hear the sound in space.
So how did NASA capture these sounds?
NASA had put together an album called “Spooky Sounds From Across the Solar System (Spooky Sounds from the Solar System)” on Halloween 2017, featuring 30 sounds from the solar system. We can probably understand how these sounds came about from the introductory text of the album –
“Some spacecraft are set up to capture radio emissions, and when scientists convert the captured radio signals into sound waves, they hear some weird sounds.”
For example, the Cassini spacecraft that recorded the sounds of Saturn in “Sounds of Saturn: Hear Radio Emissions of the Planet and Its Moon Enceladus,” No. 2, and “Juno: Crossing Jupiter’s Bow Shock,” and the Juno probe, which recorded Jupiter’s sound, both had similar instruments that could capture radio emissions.
“Scientists sometimes convert radio signals into sounds (that the human ear can hear) to better understand those signals, a method called ‘data sonification’. NASA writes in the text.
Another set of space sounds announced by NASA in November 2020 also uses data sonification, but this time the raw material for sound conversion is not radio signals, but images captured by astronomical telescopes. The images are of the Bullet Galaxy Cluster, the Crab Nebula and the Large Magellanic Galaxy, observed by the Chandra X-ray Observatory, the Hubble Space Telescope and the Spitzer Space Telescope.
▲ Image supersonic audio of the Bullet Nebula.
The process of converting these image data into sound by the Data Ultrasound Technology technique is simply understood as first matching different instruments to each of the different wavelengths of light, then the images are panned from left to right, and the instruments corresponding to the light on each vertical line are combined, and finally the sound is obtained.
What is the use of the sound from space?
Collecting sounds from space has a very practical scientific purpose.
Scientists can separate and identify data based on different sounds. For example, Robert Alexander, an expert in the Solar and Heliospheric Research Group at the University of Michigan, discovered that the sounds from the sun are periodic in nature when he studied solar data, which helped him to deduce that solar winds of different speeds hit the Earth periodically.
In addition, scientists have also discovered the existence of Jupiter’s lightning by studying sounds in space, as well as helping to analyze the impact waves formed when the planet’s magnetic field obstructs the solar wind.
But for the often “inactive” NASA, the launch of these space audio albums is not a bad way to get the public interested in cosmic exploration.
Interestingly, NASA also currently operates a music station called “Third Rock Radio”, which includes a lot of names in the “sun, moon, space, rocket” rock works, and will also insert some content such as interviews with celebrities, space events, etc..
So is NASA the next step to consider signing artists?
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