The Extravagant Universe: Exploding Stars, Dark Energy and the Accelerating ... - Robert P. Kirshner - Google Books

https://books.google.de/books?id=qQ_mV2prqNYC&pg=PA71#v=onepage

One of the world's leading astronomers, Robert Kirshner, takes readers inside a lively research team on the quest that led them to an extraordinary cosmological discovery: the expansion of the universe is accelerating under the influence of a dark energy…