Quasars are among the most dramatic objects anywhere in the cosmos. They emit prodigious amounts of energy, all due to a supermassive black hole at the heart of a galaxy. Visible far across the Universe, quasars can be used to trace both the early life of galaxies, and the properties of the intervening space.

The transcript and downloadable versions of the lecture are available from the Gresham College website: gresham.ac.uk/lectures-and-events/quasars-%E2%80%93-the-brightest-black-holes

Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,500 lectures free to access or download from the website.
Website: gresham.ac.uk
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