Pippa Goldschmidt

The Sun is a star that many astronomers assume is only worth studying because of its averageness; it’s middle-aged and middle-sized. Its convenient proximity to us means it can act as a testbed for physics research. But we’re too well-schooled in the Copernican principle to view it as ‘special’ in any way. In contrast, Lucie Green’s huge enthusiasm for the Sun is apparent throughout her book. Her purpose is to convey the current state of knowledge about our neighbourhood star, and the story proper starts with sunspots.

The idea of black holes sounds so quintessentially modern and 20th-century that it may come as a surprise to learn that it originated over 200 years ago; John Michell, a natural philosopher and clergyman, used Newtonian physics to conceive of a star massive enough to prevent even light from escaping its gravitational pull. Marcia Bartusiak’s lively and readable account of the history of black holes kicks off with an account of Michell’s 1784 paper. There’s a lull in the story after that, because a proper formulation of the physics had to wait until Einstein’s general theory of relativity in 1915.