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https://www.livescience.com/space/extrat...y-suggests

EXCERPTS: Astronomers have their eyes on a new ultrabright explosion in space: a Type II supernova in the Pinwheel Galaxy (also known as M101). A Type II supernova is the catastrophic end to a massive star's life, and this new one, called SN 2023ixf, is the nearest bang to Earth in more than a decade.

[...] In a paper posted to the preprint database arXiv and submitted to the journal Research Notes of the American Astronomical Society, the astronomers propose that intelligent extraterrestrials might use the supernova as an opportunity to send a message to other civilizations entranced by the dying star's glow. Now, the researchers are using radio telescopes to search an area near the supernova for star systems that could harbor potentially habitable planets, just in case there are advanced aliens there trying to say hello... (MORE - missing details)

(Jun 22, 2023 04:22 PM)C C Wrote: [ -> ]https://www.livescience.com/space/extrat...y-suggests

EXCERPTS: Astronomers have their eyes on a new ultrabright explosion in space: a Type II supernova in the Pinwheel Galaxy (also known as M101). A Type II supernova is the catastrophic end to a massive star's life, and this new one, called SN 2023ixf, is the nearest bang to Earth in more than a decade.

[...] In a paper posted to the preprint database arXiv and submitted to the journal Research Notes of the American Astronomical Society, the astronomers propose that intelligent extraterrestrials might use the supernova as an opportunity to send a message to other civilizations entranced by the dying star's glow. Now, the researchers are using radio telescopes to search an area near the supernova for star systems that could harbor potentially habitable planets, just in case there are advanced aliens there trying to say hello... (MORE - missing details)

To communicate at lightspeed with someone (or something) in Alpha Centuri would take 4.35 years for the message to be received, and 4.35 years for the response to be heard. (8.7 years)

To communicate at lightspeed with someone (or something) in the Pinwheel galaxy would take approximate 20.87 million years (There is a slight descrepency due to it being dimensionally the size of a galaxy) to be received and the same to get a response... (41.84 million years)

I'm pretty sure any one/thing intelligent enough to consider sending a message, would at least consider if the message would be recieved in a timely fashion, otherwise it might just say "Kilroy was here!".