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We actually recorded/witnessed a planetary collision without knowing at first...
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BrianHG:
We actually recorded/witnessed a planetary collision without knowing at first...



Yes, planets actually do collide...
When 200km wide asteroids collide at 25 light-years away around another star, their expanding debris is bright enough to be photographed by by the HST.
I wanted a rude username:
Fomalhaut b (I would be very surprised if Fomalhaut, which is a star, "disappeared") was never confirmed as an exoplanet (it's an exoplanet candidate), and what was imaged may have been the debris cloud from some asteroids colliding. This video (and by association, the YouTube channel) doesn't seem trustworthy.

https://en.wikipedia.org/wiki/Fomalhaut_b
BrianHG:
He didn't make this up, he is just re-iterating an article he read here:
https://www.pnas.org/content/early/2020/04/15/1912506117
and here:
https://www.nytimes.com/2020/04/20/science/fomalhaut-exoplanet-asteroid.html

Yes, I would not count him as an absolute astrologist who was involved with the study.
Okay, the presenter is a fan of Astronomy and makes weekly video covering the latest publications in the science.  He does use and promote 'Universe Sandbox 2' software for many of his illustrations.
Yes, my thread title could have been more specific, but, I ran out of characters.
Yes, Antone, narrator in video, does say it was an exoplanet candidate originally, but is now being described as the collision of what may appear to be 2 - 200km wide asteroids.
Electro Detective:

His street dealer must have had the good stuff in stock   :D

Has NASA or anyone else verified this mash of science and sci-fi drivel ?

or is it oooh....  :o   it's 'classified' mate, move on please   :scared:

BrianHG:

--- Quote from: Electro Detective on April 26, 2020, 04:15:03 am ---
His street dealer must have had the good stuff in stock   :D

Has NASA or anyone else verified this mash of science and sci-fi drivel ?

or is it oooh....  :o   it's 'classified' mate, move on please   :scared:

--- End quote ---
LOL, read the NY Times link, NASA & ESA made the video from the captured Hubble images right in the middle of the article.

To see the explosion orbiting a star from 25 light years, fade into a cloud is definitely an insanely huge energetic collision.


https://vp.nyt.com/video/2020/04/20/86118_1_20planet-video_wg_720p.mp4

QUOTE: A simulation of the expanding and fading cloud at the Fomalhaut star that astronomers previously identified as an exoplanet, Fomalhaut b. Video by NASA, ESA, and A. Gáspár and G. Rieke (University of Arizona)
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