Blackholecam - The supermassive black hole at the centre of the giant elliptical galaxy M87. Left: The black hole feeds on a swirling disc of glowing plasma, driving a powerful relativistic jet
![Standing on the shoulders of programmers: the power of free and open-source software – Physics World Standing on the shoulders of programmers: the power of free and open-source software – Physics World](https://physicsworld.com/wp-content/uploads/2021/09/PWSep21Rao-eht-frontis.jpg)
Standing on the shoulders of programmers: the power of free and open-source software – Physics World
![The Event Horizon Telescope – A Global Network of Radio Telescopes – National Radio Astronomy Observatory The Event Horizon Telescope – A Global Network of Radio Telescopes – National Radio Astronomy Observatory](https://public.nrao.edu/wp-content/uploads/2020/04/EHT_Telescopes_Graphic_2017Telescopes_2020QuasarUpdate.jpg)