Associate professor, Physics and Astronomy, University of Victoria
Jon Willis is an Associate Professor at the Department of Physics and Astronomy at the University of Victoria. As an astronomer he studies the physical contents of the Universe and his research covers many aspects of cosmology and astrophysics. Jon is particularly interested in the emerging science of astrobiology, the search for life beyond Earth. In 2016 he published "All These Worlds Are Yours: The Scientific Search for Alien Life”, a popular science book by Yale University Press.
A galaxy cluster can be likened to a great city of galaxies, a galactic conurbation where each galaxy represents an individual, twinkling structure. Just as an archaeologist might seek evidence of the oldest cities on...