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New EHT Images Reveal Dynamic Behavior of M87* Black Hole

9/21/2025

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Summary

Story summary

Astronomers observed the supermassive black hole M87* in the galaxy M87, located 55 million light-years away.
The Event Horizon Telescope (EHT) captured new images of M87* since 2017.
Findings show the black hole's polarization flipped between 2017 and 2021, indicating a complex magnetic structure.
Consistent ring size supports Einstein's predictions, while changing polarization suggests dynamic plasma behavior.
Enhanced telescope sensitivity enabled the detection of subtle polarization signals, marking a significant advancement in black hole research.

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Story summary

Astronomers observed the supermassive black hole M87* in the galaxy M87, located 55 million light-years away.
The Event Horizon Telescope (EHT) captured new images of M87* since 2017.
Findings show the black hole's polarization flipped between 2017 and 2021, indicating a complex magnetic structure.
Consistent ring size supports Einstein's predictions, while changing polarization suggests dynamic plasma behavior.
Enhanced telescope sensitivity enabled the detection of subtle polarization signals, marking a significant advancement in black hole research.