처음부터 애매했던 '명왕성' 그때는 맞고 지금은 틀리다

🌠Timecodes🌠 00:54 (Congratulations) Professor Ji Woong-bae's New Book Release (Part 2) 01:16 Do you have a favorite star? 03:53 Professor Ji Woong-bae's Favorite Star, Sirius 06:15 How was Pluto discovered? 09:19 Did Pluto influence Uranus's orbit? 10:24 What is the actual size of Pluto? 11:07 What is the origin of the name Pluto? 13:39 What are Pluto's unique characteristics? 15:55 What was the atmosphere like at the time of Pluto's demotion? 17:35 The three conditions for a planet? 22:42 Who opposed Pluto's demotion? 27:44 Can Pluto become a planet again? 31:25 What is NASA's ulterior motive for trying to reinstate Pluto? 32:15 What if the conditions for the third planet changed? 33:28 Pluto probe, New Horizons? 34:50 Finally facing the true face of Pluto 36:17 Why was Pluto exploration necessary? 37:34 Where is the New Horizons spacecraft currently located? 38:19 How long will the New Horizons spacecraft's flight last? #Pluto #PLUTO #SolarSystem #Planet #Orbit #PercivalLowell #ClydeTombaugh #Removal #InternationalAstronomicalUnion #IAU #Return #NASA #JaredIsaacman #Director #HandwrittenLetter #NewHorizons #JiWoongBae #SpaceDust #NewBookIntro #FromTheStarsToEarthlings #Sirius #Astronomy #Science #OhSeungHoon #ScienceOfScienceAndLearning