Following ghost particles to hidden black holes
Matt explores how the IceCube neutrino observatory opens a new window on cosmic rays and hidden supermassive black holes.
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Matt O’Dowd
Matt O’Dowd is an astrophysicist and the writer-host of PBS Space Time, exploring black holes, quantum physics, and the workings of the universe.
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pbs.orgWatch the episodeWhy does minus one twelfth turn up in physics?
A new Space Time episode unpacks how physicists handle infinite sums, connecting the mathematics to the Casimir effect and bosonic string theory.
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Could Webb have spotted a black hole star?
Matt examines a possible explanation for Webb’s little red dots: black holes wrapped in dense gas. The episode weighs what this could mean for the growth of early supermassive black holes.
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Exploring the structure of empty space
Space Time examines a prediction that the quantum vacuum can become structured under extreme conditions, and evidence that might reveal the effect.
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A black hole that might predate the stars
Matt looks at a candidate gravitational-wave signal that could point to a black hole too light to form through stellar collapse. He explains why confirmation and further analysis matter.
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