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About That Particulate Matter In Space...

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#1 RLK1

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Posted 21 February 2024 - 02:17 PM

"Nearly 70 years after the launch of Sputnik, there are so many machines flying through space, astronomers worry their light pollution will soon make it impossible to study other galaxies with terrestrial telescopes.

Then there is the space junk — nearly 30,000 objects bigger than a softball hurtling a few hundred miles above Earth, ten times faster than a bullet."

 

"The study found that 10% of the particles in the upper atmosphere now contain bits of metal from rockets or satellites falling out of orbit and burning up. As humanity becomes increasingly dependent on information beamed down from above, the report predicts manmade debris will make up 50% of stratospheric aerosols in coming decades, matching the amount created naturally by the galaxy."

 

"Ever since, “Kessler Syndrome” — depicted with appropriate suspense in the 2013 film “Gravity” — has been shorthand for the industry’s worry that too much space traffic will eventually create a vicious cycle of more debris leading to even more collisions until launches become impossible.

In low-earth orbit, objects can collide at around 23,000 miles an hour, enough for even the tiniest debris to crack the windows on the International Space Station."

 

https://www.cnn.com/...-scn/index.html


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#2 GeorgeLiv

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Posted 23 February 2024 - 12:49 AM

Kessler's Syndrome will probably end all nonsense space flights. Hope it comes sooner than predicted. The problem is that companies will pump even more aerosols in the upper atmosphere "in the emerging field of orbital debris removal". I'm already seeing a semi-permanent haze of something always obscuring my dark sky place. And then there was that upper level smoke last year (or two). I got a few 22.30 mag/arcsec2, which was quite strange, with such a milky/dimmer sky.



#3 earlyriser

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Posted 23 February 2024 - 04:29 AM

We may end up with something like a man-made zodiacal light. How bright it will be and what times of night it will be visible, who knows? 



#4 RLK1

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Posted 16 April 2024 - 07:02 PM

"NASA says it expected space station garbage to burn up. The debris smashed into a Florida home instead"

 

“It was a tremendous sound. It almost hit my son,”

 

“I think this was a good wake-up call to say, ‘Hey we need to do better’ — and the US should not ever have been in a situation where something came down like this and went through a house in Florida,”

 

https://www.cnn.com/...-scn/index.html


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#5 GeorgeLiv

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Posted 16 April 2024 - 09:42 PM

Published Tue April 16, 2024, a great CNN article and very disconcerting..

 

"A robotic arm pried the garbage, weighing roughly as much as an SUV, from the space station’s exterior and flung it into Earth’s orbit, according to NASA."

 

"...plan hinged on the belief that the discarded [junk], traveling at more than 22 times the speed of sound, would eventually be incinerated as they struck the atmosphere."

 

"NASA said when the pallet was jettisoned on March 11, 2021."



#6 MeridianStarGazer

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Posted 17 April 2024 - 08:28 PM

Had Musk used high altitude balloons instead, they would have been below any sun light and would have doubled as weather balloons. Why did he have to send them into space?


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