The Sciences

Free Download | Black Holes Explained

What are black holes and how were they discovered?

The first direct visual image of a black hole in Messier 87, a supergiant elliptical galaxy in the constellation Virgo. Source: Event Horizon Telescope / CC BY (


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Find out how the detection of gravitational waves led to the discovery of two black holes colliding with this free digital download on black holes. Inside we will also cover the Event Horizon Telescope and how it discovered one of the universe’s most mysterious objects. Plus, we will explain how two black holes colliding led to the rewriting of stellar evolution.

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Black Holes Explained

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