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EN
Episode 517: QA 85: Am I Optimistic About Humanity? And More...
['Fraser Cain']
Universe Today Podcast
00:18 Am I optimistic about humanity?
04:03 How do they keep dust off big telescopes?
08:18 Could we make a really big Event Horizon Telescope?
15:58 Are gravitational waves being created all the time?
17:42 How can you tell the size of an object?
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