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59 minutes ago, auxien said:

re: previous conversations about true color vs false color in space imagery:

 

 

weather today: 1000 degrees fahrenheit and overcast with acid clouds

 

seems like a b&w image. venus has a yellow tint visible with the naked eye from earth

 

speaking of the weather, the 1000 degrees is not caused only by proximity to the sun. the temperature is much hotter than the proximity to the sun alone would cause. the leading astronomical understanding is that the planet, in the past, underwent severe climate change. atmospheres are a major factor in temperature and climate. venus's atmosphere is 96% co2.

 

i really think we are actually underestimating the risk of climate change. you set a complex system in motion and you don't know where it's going to go. if we could get some of that sweet galactic alien wisdom, i think they would tell us to not fuck up our atmosphere and climate systems.

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1 hour ago, trying to be less rude said:

weather today: 1000 degrees fahrenheit and overcast with acid clouds

don't eat the brown clouds

1 hour ago, trying to be less rude said:

seems like a b&w image. venus has a yellow tint visible with the naked eye from earth

yeah, just pure cloud cover. i'm guessing the yellow tint we see has to do with our atmosphere blocking or adding something inherent to the clouds coloring even tho from space Venus would seem just grey to us.

1 hour ago, trying to be less rude said:

speaking of the weather, the 1000 degrees is not caused only by proximity to the sun. the temperature is much hotter than the proximity to the sun alone would cause. the leading astronomical understanding is that the planet, in the past, underwent severe climate change. atmospheres are a major factor in temperature and climate. venus's atmosphere is 96% co2.

i really think we are actually underestimating the risk of climate change. you set a complex system in motion and you don't know where it's going to go. if we could get some of that sweet galactic alien wisdom, i think they would tell us to not fuck up our atmosphere and climate systems.

correct, yeah. they're still not certain how Venus could've got to where it's at now but it obviously is what it is. it underwent something akin to climate change yeah, but it's, in my understanding, still vastly different than most anything we've seen on earth in the last billion years.

the good news is that fucking up Earth to be as bad as Venus is almost impossible, even if we were to really try. anything we do is going to get some kind of counterweight by Mother Nature, but likely at the detriment of many, many types of life on the planet, including of course humanity. even if we fuck things up over the next few hundred years worse than we have so far, Earth will almost certainly reset to a relative stasis eventually. that could be tens or hundreds of thousands of years in the future tho, after long ice ages or similar eon-length events get triggered (which as far as we know humanity cannot now and maybe will not ever be able to counteract in any meaningful way). future generations of humans, be it soon or many hundreds of years away, are going to have to deal with unthinkably devastating natural disasters, human-caused and not. that we're so lucky is honestly amazing. 

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https://www.bbc.com/news/world-australia-60150542

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Australian scientists say they have discovered an unknown spinning object in the Milky Way that they claim is unlike anything seen before. The object - first discovered by a university student - has been observed to release a huge burst of radio energy for a full minute every 18 minutes.

Aliens

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14 hours ago, Nebraska said:

i'm hoping it's a next generation dyson sphere with a highly advanced society of humanoids that now has failing technology and could need our help repopulating their planet

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I'm going to have to re-watch that episode tonight, it's been a while! Brenda Strong - bra-less wonder from Seinfeld -is in it, always had a soft spot for her, along with Jerry Hardin, another stalwart of classic TV and movies. He's etched in my mind as the lawyer from the opening of Big Trouble In Little China. 

Have enjoyed The Event Horizon YT channel, good episode on Tabby's Star, and region of space were all the F-type stars all exhibit dipping/dimming.

 

 

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^ nice!

 

here's a great shot of that galactic center... the bright zone apparently is the Sag A complex 

 

image.thumb.png.a2f25fc6edf95e21f4ee36c310384568.png

 

 

 

 

 

image.thumb.png.689e639dd538a7559938241f9e7bffa2.png

 

https://arxiv.org/pdf/2201.10541.pdf

 

and here's a nyt about the thing https://www.nytimes.com/2022/01/31/science/milky-way.html

Quote

Noise and chaos reign at the heart of the Milky Way, our home galaxy, or so it appears in an astonishing image captured recently by astronomers in South Africa.

The image, taken by the MeerKAT radio telescope, an array of 64 antennas spread across five miles of desert in northern South Africa, reveals a storm of activity in the central region of the Milky Way, with threads of radio emission laced and kinked through space among bubbles of energy. At the very center Sagittarius A*, a well-studied supermassive black hole, emits its own exuberant buzz.

We are accustomed to seeing galaxies, from afar, as soft, glowing eggs of light or as majestic, bejeweled whirlpools. Rarely do we glimpse the roiling beneath the clouds — all the forms of frenzy that a hundred million or so stars can get up to.

The image was captured and analyzed by a team of astronomers led by Ian Heywood of Oxford University and the South African Radio Astronomy Observatory. They published their results last week in the Astrophysical Journal.

MeerKAT is a precursor to the Square Kilometre Array, an immense set of antennas planned for construction in South Africa and Australia in the coming decade. When completed, it will be the most powerful radio telescope on Earth for the foreseeable future.

To visible-light telescopes, large sections of the Milky Way sky are rendered black by intervening clouds of cosmic dust. But radio waves pass right through, enabling MeerKAT to get up-close and personal.

“The best telescopes expand our horizons in unexpected ways,” Fernando Camilo, chief scientist at the South African Radio Astronomy Observatory and one of many co-authors of the new paper, said in a news release.

Twenty separate observations, generating 70 terabytes of data and requiring three years of processing, were needed to produce the image. The result is a panorama 1,000 light-years wide and 600 light-years high of the central regions of the Milky Way. (The entire galaxy is 100,000 light years in diameter, and its center is 25,000 light-years from Earth.)

The Milky Way’s disc, where most of the stars and exoplanets reside, appears in the image as a ragged horizontal streak. A dense blob of energy in the middle of the streak marks the spot where lurks a black hole four million times as massive as our sun. The surrounding region is filled with mysterious glowing filaments as much as 100 light-years long.

Astronomers have surmised that such filaments, first recognized 35 years ago, are formed by magnetized tubes of gas and high-energy particles. But scientists still don’t understand how these arose. The new paper, the study’s authors claim, assembled enough new examples of such features to study their properties and varieties as a group for the first time.

Emanating vertically above and below the galactic disc are a matched pair of gigantic radio bubbles, probably the remains of a series of supernova explosions that occurred several million years ago. In the background, the radio image is speckled with the bright dots of supermassive black holes in faraway galaxies.

“I’ve spent a lot of time looking at this image in the process of working on it, and I never get tired of it,” Dr. Heywood said.

Dr. Camilo concurred that the galaxy’s innards resembled an electrical storm. “Electrical activity is of course very much crucial to our living animal hearts,” he added. “I suppose you could say that without electrical activity the center/heart of the galaxy, if not dead, would look very, very different.”

 

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