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PBS Space Time
PBS Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.
12 Seasons · 407 Episodes
Latest episode
Something Disturbing Happens When You Solve Einstein's Equations This Way
Season 11 Episode 25 | 14m 42s | CC
Gödel discovered a solution to General Relativity that actually permits time travel — no exotic physics required. His "Gödel universe" reveals that spacetime itself can loop back on itself under certain conditions, blurring the line between past and future. This exposes a startling limitation: the theory offers no guarantee of a consistent cause and effect.
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