What is the Universe expanding into?

What is the Universe expanding into?

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The Science Asylum • 40K views

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Math topics:
_Mathematical_objects_##Mathematical objects##_Space_##Space##_Infinity_##Infinity##_Category_(mathematics)_##Category (mathematics)##_Differential_geometry_##Differential geometry##_Curvature_##Curvature##_Event_horizon_##Event horizon##_Faster-than-light_##Faster-than-light
Other topics:
_Physical_cosmology_##Physical cosmology##_Supercluster_##Supercluster##_Observable_universe_##Observable universe##_Universe_##Universe##_Galaxy_##Galaxy
video-id: 0B4tj9c0vG8 channel_The_Science_Asylum_