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PBS Space Time
Martian Soil Is Deadly. And That's Why It Might Support Life
Tardigrades can survive almost anything—even most of Mars. But one Martian chemical stops even them.
We Thought Black Holes Ended in Singularities. They Might End In a Frozen Big Bang
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.
We Thought Black Holes Ended in Singularities. They Might End In a Frozen Big Bang
Season 11 Episode 28 | 14m 27s | CC
For a while, physicists hoped black holes weren’t real. Their event horizons trap even light, creating paradoxes, while the singularities inside suggest impossible infinite density. For centuries, scientists searched for a way out of this cosmic nightmare. One remaining hope is the Planck star: a dense core of frozen Big Bang energy hidden inside a black hole.
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