Skip to main content
Telescopes and space missions

Telescopes and space missions

Portrait of a black hole

10 Dec 2015 Tushna Commissariat
This article first appeared in the 2015 Physics World Focus on Astronomy and Space

Astronomers at the Event Horizon Telescope are setting up the most elaborate of shots, as they aim their global network of telescopes towards the black hole at the centre of our galaxy. Tushna Commissariat investigates how it is possible to image an object that swallows everything, including light

Sagittarius A*
Dark heart: The supermassive black hole Sagittarius A* lies at the centre of our Milky Way galaxy. (Courtesy: NASA/CXC/University of Wisconsin/Y Bai et al.)
We live in the age of photography. The huge popularity of Instagram, Snapchat and the “selfie” s

You’ve reached the limit of what you can view on Physics World without registering

If you already have an account on Physics World, then please sign in to continue reading

If you do not yet have an account, please register so you can

  • Access more than 20 years of online content
  • Choose which e-mail newsletters you would like to receive
Copyright © 2025 by IOP Publishing Ltd and individual contributors