News for hackers. Stuff that matters.
Re:Euclid finds complete Einstein Ring in NGC galaxy by fmbb on Sunday March 02, 2025 @01:54AM (#43228036)
I saw a YouTube video by some astronomy nerd seemingly specializing in simulation or special effects. Sorry I cannot recall the channel name.

He pointed out to the viewers that the amount of void in between stars that is visible is a bit misleading in all these super high res photos we see of our universe.

The video ended with some special effects/simulations of the night sky as seen from the South Pole. If the light pollution was literally zero, and you had eyes (or a camera) that could somehow see _all_ stars regardless of how far away they are, the night sky would basically look like a still picture of the color noise on an old analog TV. Hardly any black void anywhere, it’s just all stars. It was mind-boggling (and I hope true, not a scam video).

Re:Euclid finds complete Einstein Ring in NGC galaxy by consp on Sunday March 02, 2025 @02:28AM (#43228200)
The CMB is uniform, so if you go back far enough that is true (and apply a blueshift). Amospheric disturbances would smear out a lot of it though, so no points like in analogue thermal noise.
Re:Euclid finds complete Einstein Ring in NGC galaxy by raattgift on Sunday March 02, 2025 @06:16AM (#43229306)
You probably found a video discussing Olbers's paradox <https://en.wikipedia.org/wiki/Olbers%27s_paradox>.