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Why Does Gravity Work Across Empty Space?

Why does gravity still hold the Moon in orbit when the space between worlds is almost entirely empty? Thank you for being here and spending your time with this journey through one of physics’ deepest mysteries. In this video, we explore how Isaac Newton described gravity, why Albert Einstein redefined it as curved spacetime, and how LIGO confirmed that spacetime itself can carry gravitational waves. From the Earth–Moon distance to the speed of gravity, from action at a distance to quantum gravity, this story follows the real science behind why gravity works across empty space. If you’ve ever wondered how planets stay in orbit, how gravity travels through vacuum, or why physicists still say gravity is unfinished, this episode is for you. ------------------------------------------------------------------------------------ If you’d like a quiet place to explore the questions that still shape our universe, this playlist is here waiting for you. Each video unfolds slowly and clearly, guiding you deeper into the mysteries written into space, time, and everything between. Thank you for stopping by — it truly means a lot.    • Mysteries of the Universe   #SleepyCosmologistUniverse #Universe #SleepStory #cosmologist #photon