Have you ever asked yourself where the boundaries of our universe are, how far exactly it extends? My guess is you would not have come up with a satisfactory answer even if you spent hours on end trying to figure it out. No wonder, as the universe is like the horizon: you take one step forward and it glides two steps further away from you.
0:00 INTRO 01:08 WHAT LIES BEYOND THE BOUNDARIES OF THE MILKY WAY 09:59 WHAT LIES BEYOND THE OBSERVABLE UNIVERSE 19:50 THE PULSAR 29:24 TRAPPIST-1 38:19 MAGNETAR 49:28 TON 618 59:03 THE FERMI PARADOX
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