Download Free Black Holes eBook

Sky and Telescope is offering a free black holes eBook:

This free eBook from Sky & Telescope magazine includes four articles from the experts, who explain various aspects of black holes.

  • “A Quasar in Every Galaxy?” by Robert Irion summarizes observations and theories about the supermassive black holes that lurk in the core of almost every major galaxy.
  • “How Black Holes Helped Build the Universe” by Christopher Wanjek shows how, without black holes, we wouldn’t recognize the universe around us, and we might not even exist.
  • “Spinning Hearts of Darkness” by Laura Brenneman suggests that measuring black holes’ spin can tell us how they form.
  • “Einstein’s Shadow” by Camille Carlisle introduces a planet-wide telescope that has set its sights on imaging a black hole directly.
black hole

Black hole

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