Taken from the July 2019 issue of Physics World. John Budden calls for certain areas on the Moon to be protected from human interference so that they can be dedicated to radio astronomy (Courtesy: NASA/Mark Dowman and Doug McLeod) When the team behind the Event Horizon Telescope (EHT) released the first images of a black hole in 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 Want to read more? Registration is free, quick and easy Note: The verification e-mail to complete your account registration should arrive immediately. However, in some cases it takes longer. Don't forget to check your spam folder. If you haven't received the e-mail in 24 hours, please contact customerservices@ioppublishing.org. E-mail Address