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We surpassed 150,000 subscribers! What are the observations that changed human history? Can planets like Tatooine exist in multiple star systems? What is astronomy for? What is the space-time mosaic? How was the Doppler effect discovered? We discuss this and much more in this extraordinary live. The live took place in the context of #menoumespiti. ►Astronio on social media: Instagram: / _astronio_ Facebook: / astronioyoutube Twitter: / _astronio_ ►Contents: 2:14 Venus 6:04 Lights in the sky, Starlink 9:14 Sizes and brightness of stars 21:38 History of astronomy - The Little Explorer 29:46 In the age of Galileo 38:26 In the age of Hubble 41:47 Hubble telescope 44:00 An exciting era 47:03 What is astronomy for - Utility approach 49:43 The Doppler effect 56:26 Space exploration and technological leaps 1:01:33 What is astronomy for - Existential approach 1:04:20 The sky through science 1:09:08 Combining utilitarian and existential approaches 1:12:10 A strange childhood dream 1:18:45 Planets in double star system 1:31:28 Objects in space 1:32:28 Favorite planet 1:32:50 Sombrero galaxy 1:34:20 Galactic core 1:35:05 Astronomy books 1:35:22 Active galactic core 1:40 :58 Comet Hale Bop 1:46:36 Nebula 1:51:19 The sun from Pluto 1:57:19 Close ►Sources and information: 1. How common are planets like Tatooine? https://www.space.com/how-common-are-... 2. Life Expectancy http://sticerd.lse.ac.uk/seminarpaper... ►Programs: Space Engine, Universe Sandbox ►Image of Jupiter near Earth: pixabay ►Music: 1. Kevin MacLeod - Organic Meditations Three 2. Event Departure - Silent Partner Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/b...