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Open problem · Astronomy · since 2007

Fast radio bursts

What causes the millisecond radio flashes that arrive from distant galaxies?

Summary

Fast radio bursts are transient radio pulses lasting milliseconds; many models have been proposed for what causes them, and why only some repeat, but none is widely accepted.

Source

Open, as listed by Wikipedia · Unsolved problems in astronomy. Checked 29 Sep 2026.

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