우리가 보는 우주는 모두 과거였다 | 제임스 웹이 밝혀낸 충격적인 진실

We gaze at the night sky and believe we are seeing the universe as it is today. But is that really the case? The light from the moon is what it looked like about 1.28 seconds ago, and the sun is what it looked like about 8 minutes and 20 seconds ago. Even the light from our nearest star, Proxima Centauri, takes 4.24 years to reach us. Then what about galaxies billions of light-years away? In this documentary, we explore how the James Webb Space Telescope (JWST) showed humanity the oldest light in the universe, why we had to look at infrared light, the secrets of the L2 Lagrange point and the giant sunshield, observations of the first galaxies and exoplanet atmospheres, and even the last barrier of the universe that even James Webb cannot see. This video is not simply a story introducing telescopes. It is a time to reflect together on what it means to look at the universe, and why we are always looking at the universe's past. Please stay with us until the end. Cosmos View The most beautiful way to understand the universe. 00:00 Why are we looking at the sun of the past? 02:12 Why was the James Webb Space Telescope created? 07:08 How does the James Webb look at the past of the universe? 12:15 Searching for the first galaxies immediately after the Big Bang 18:05 The history of astronomy changed by the James Webb 24:18 How did the James Webb discover the universe that Hubble could not see? 30:32 How does the James Webb read the atmospheres of exoplanets? 36:58 Can the James Webb find traces of extraterrestrial life? 42:10 What the James Webb discovered was not aliens, but our place in the universe 46:08 The final boundary of the universe that even the James Webb cannot peer into 49:32 Why are we always looking at the past of the universe? 52:13 The Last Story Light Left Us #JamesWebb #JWST #Space #Astronomy #NASA #ESA #SpaceDocumentary #ScienceDocumentary #Galaxy #BigBang #SpaceTelescope #Infrared #CarlSagan #RichardFeynman #CosmosView