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Curated by: Quanta Magazine (198 videos)
Astrophysicist Erin Kara explores black holes by carefully tracking the gas and plasma swirling near their event horizons. To reconstruct the immediate environment, Kara turns to the X-ray light given off by the accretion disk, measuring the timing of photons using a telescope mounted on the International Space Station. This technique — called reverberation mapping — works in a manner similar to how bats ‘see’ using sound echolocation, allowing researchers to infer the structure of the gas and plasma with remarkable resolution. ---------- Read the full article: https://www.quantamagazine.org/to-see-black-holes-in-detail-she-uses-echoes-like-a-bat-20240212 Black hole footage courtesy of NASA and European Southern Observatory. ---------- - VISIT our website: https://www.quantamagazine.org - LIKE us on Facebook: https://www.facebook.com/QuantaNews - FOLLOW us Twitter: https://twitter.com/QuantaMagazine @QuantaScienceChannel #science #blackhole #space #physics #telescope