Posted in Astronomy at 12:00 on 21 May 2024
From You Tube via Astronomy Picture of the Day for 8/5/24.
Not real of course, just an animation, but it shows the weird effects of the black hole’s gravity on the light emanating from the disc.
Posted in Astronomy at 20:00 on 2 May 2021
From You Tube via Astronomy Picture of the Day for 27/4/21.
An animation of a star being shredded by a black hole.
Posted in Astronomy at 20:00 on 12 April 2019
I suppose everyone’s seen this by now; it’s been on the TV news and in all the newspapers.
Picture from The Daily Galaxy.
According to Astronomy Picture of the Day on 11/4/19 the black area isn’t the black hole but rather its shadow.
Still, to be able to image it at all is astounding.
Posted in Astronomy, Linguistic Annoyances at 19:10 on 22 November 2009
I know the description is kind of metaphorical and reflects a Gosh-Wow! attitude to the phenomenon and that light can’t escape from below the event horizon.
But they aren’t!
Black, that is.
Not always, anyway.
Certainly not if they are attracting material from nearby stars. Then they must be the biggest firework displays in the universe.
For example:-
The artist’s impression comes from
http://www.gwu.edu/~sps/Society%20of%20Physics%20Students%20%28SPS%29/Events/A136FC42-F9B5-46A5-A0CB-F0007B262E14_files/Black-hole.jpg.
Here’s another nice one showing material from a nearby star bleeding into the accretion disc.
That is from https://lasers.llnl.gov/programs/images/nasa_black_hole.jpg.
Not at all bad for something that’s described as black.
