A reminder, while we’re on the subject, that black holes (or, to be precise, the stuff in their VERY near vicinity) are actually some of the brightest things in the cosmos: https://cosmosmagazine.com/space/the-bright-side-of-black-holes …
We already take pics of black holes; what’s @ehtelescope looking for? Usually, we see a bright glow from the whirlpool of matter falling in (the accretion disk). EHT might be able to make out the “shadow”: a dark hole in that glow from where light can’t escape the event horizon.
A black hole “shadow” isn’t a shadow at all, of course. It’s a part of space that’s so warped that it’s pulling all the light into it, so even though there’s extraordinarily bright glowing plasma all around it, in that small region all you can see is pure black.
Here’s a simulated pic of what a black hole with a bright hot accretion disk might look like up close, from https://blackholecam.org/research/bhshadow/ …. The shadow is the dark bit in the upper middle. (But the #EHT resolution is not this good; don’t hold out hope for more than a handful of pixels)
You can follow @AstroKatie.
Tip: mention @threader_app on a Twitter thread with the keyword “compile” to get a link to it.
Enjoy Threader? Sign up.
Threader is an independent project created by only two developers. The site gets 500,000+ visits a month and our iOS Twitter client was featured as an App of the Day by Apple. Running this space is expensive and time consuming. If you find Threader useful, please consider supporting us to make it a sustainable project.