Why time slows down near massive objects like in Interstellar

Space · Published 8 October 2026 Swipe more like this →

In short: Explore the fundamental physics behind time dilation. This video demonstrates how the constant speed of light across all observers necessitates that time must change depending on your perspective.

While the full mechanics of general relativity are complex, the concept of time dilation emerges naturally from a single rule: all observers see light moving at the same speed. This video provides a foundational explanation of how this phenomenon occurs.

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