| Gravity's Engines How Bubble-Blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos | | | Author:
| Scharf, Caleb | | Read by:
| Scharf, Caleb | | ISBN: | 978-1-4272-5957-8 | | Publication Date: | Oct 2014 | | Publisher: | Macmillan Audio
| | Book Format: | CD-Audio | | List Price: | USD $39.99 | Book Description:
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