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Video: Testing general relativity with black holes

Avery Broderick and Tim Johannsen of Perimeter Institute and the University of Waterloo explain a new method for testing the theory of general relativity using the Event Horizon Telescope. Read the research, published in August 2016 in Physical Review Letters, here:

Read a full story with Broderick and Johannsen here.


Perimeter researchers use measurements from the Event Horizon Telescope to test Einstein’s theory with the supermassive black hole at the centre of the Milky Way.

/September 13, 2016

Perimeter researchers are trying to find out how far one can tweak general relativity and still end up with the universe we observe. Their method? Adding “hair” to black holes.

/March 17, 2014

The international EHT research team, including Perimeter’s Avery Broderick, has measured for the first time the magnetic fields that contribute to black hole growth.

/August 16, 2016