A Sense of Doubt blog post #2747 - Sometimes, in Space, they can hear you SCREAM

A Sense of Doubt blog post #2747 - Sometimes, in Space, they can hear you SCREAM

Just this share today.

Thanks for tuning in.


https://science.slashdot.org/story/22/08/22/2223238/nasa-captures-actual-sound-in-space

NASA Captures 'Actual Sound' In Space (vice.com)

Posted by BeauHD on Tuesday August 23, 2022 @06:00AM from the nope dept.

Space can be downright noisy in the right conditions, such as the hot gas surrounding the immense black hole at the center of the Perseus galaxy cluster, according to NASA. Motherboard reports:The agency recently tweeted an eerie audio clip that represents actual sound waves rippling through the gas and plasma in this cluster, which is 250 million light years from Earth. "The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel," the agency tweeted. "A galaxy cluster has so much gas that we've picked up actual sound. Here it's amplified, and mixed with other data, to hear a black hole!"

Though the acoustic signals generated by the black hole were first identified in 2003 in data from NASA's Chandra X-ray Observatory, they have never been brought into the hearing range of the human ear -- until now. "In some ways, this sonification is unlike any other done before... because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory," NASA said in a statement. "In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time.""As it turns out, the sound waves in their natural environment are a whopping 57 octaves below the note middle C, making this black hole a real cosmic baritone," adds Motherboard. "To make these tremors audible to humans, scientists raised their frequencies quadrillions of times (one quadrillion is a million billions, for perspective)."

https://www.vice.com/en/article/y3p3dv/nasa-has-captured-actual-sound-in-space-and-its-honestly-terrifying

In space, no one can hear you scream, the saying goes, because sound waves can’t travel through the vacuum that extends across most of the universe. However, space can be downright noisy in the right conditions, such as the hot gas surrounding the immense black hole at the center of the Perseus galaxy cluster, according to NASA. 

The agency recently tweeted an eerie audio clip that represents actual sound waves rippling through the gas and plasma in this cluster, which is 250 million light years from Earth. "The misconception that there is no sound in space originates because most space is a ~vacuum, providing no way for sound waves to travel," the agency tweeted. "A galaxy cluster has so much gas that we've picked up actual sound. Here it's amplified, and mixed with other data, to hear a black hole!"

Though the acoustic signals generated by the black hole were first identified in 2003 in data from NASA’s Chandra X-ray Observatory, they have never been brought into the hearing range of the human ear—until now.

“In some ways, this sonification is unlike any other done before… because it revisits the actual sound waves discovered in data from NASA's Chandra X-ray Observatory,” NASA said in a statement. “In this new sonification of Perseus, the sound waves astronomers previously identified were extracted and made audible for the first time.” 

As it turns out, the sound waves in their natural environment are a whopping 57 octaves below the note middle C, making this black hole a real cosmic baritone. To make these tremors audible to humans, scientists raised their frequencies quadrillions of times (one quadrillion is a million billions, for perspective). 

The effect is so chilling that it would seem totally at home in a Halloween playlist. But it is just one of many trippy earworms from the space sonification genre, in which astronomical data of all kinds is converted into sound waves. To that end, if you’re looking for some more off-Earth bops, check out these real recordings from Mars, the songs of gravitational waves, and the resonances of planetary systems.

https://science.slashdot.org/story/22/08/22/2219211/james-webb-telescope-captures-surreal-images-of-jupiters-auroras

James Webb Telescope Captures Surreal Images of Jupiter's Auroras (engadget.com)

Posted by BeauHD on Tuesday August 23, 2022 @03:00AM from the out-of-this-world dept.

The James Webb Space Telescope has snapped a pair of near-infrared photos showing Jupiter's polar auroras. "You can also see the planet's extremely faint rings and two of its smaller moons, Amalthea (the bright spot to the far left) and Adrastea (the dot at the left edge of the central ring)," notes Engadget. From the report:The pictures were taken using NIRCam's widefield view on July 27th. As for the trippy visuals? Astronomers created composites using several images produced with filters mapped to multiple colors (particularly visible in the image below). The Great Red Spot and other cloud formations are white as they reflect large amounts of sunlight. The observations should provide more insights into Jupiter's "inner life," according to the European Space Agency. That, in turn, could help scientists understand the behavior of gas giants beyond the Solar System.

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- Bloggery committed by chris tower - 2208.26 - 10:10

- Days ago = 2611 days ago

- New note - On 1807.06, I ceased daily transmission of my Hey Mom feature after three years of daily conversations. I plan to continue Hey Mom posts at least twice per week but will continue to post the days since ("Days Ago") count on my blog each day. The blog entry numbering in the title has changed to reflect total Sense of Doubt posts since I began the blog on 0705.04, which include Hey Mom posts, Daily Bowie posts, and Sense of Doubt posts. Hey Mom posts will still be numbered sequentially. New Hey Mom posts will use the same format as all the other Hey Mom posts; all other posts will feature this format seen here.