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What 21 stars tell us about the universe
How do you whittle down the 200 billion in our Milky Way galaxy to a mere 21? Focus on the ones that have changed human understanding of the universe, as astronomer Giles Sparrow told DW.
DW: Let s start with the basics: We often talk about stars in the night sky as though we could reach up and touch them. But even the nearest star to Earth is beyond our solar system within our galaxy, the Milky Way, but almost too far to comprehend. When in writing your book A History of the Universe in 21 Stars (and 3 imposters)