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These close-up photos of the sun could help us forecast space weather - Popular Science

Crucially, those instruments will also be able to resolve the invisible magnetic field lines that thread through the sun’s various layers, because their magnetic influence orients and filters light in recognizable ways. Solar physicists are especially curious to turn DKIST toward the corona, an atmospheric layer 10,000 times dimmer (but paradoxically much, much hotter) than the star’s surface. Eruptions punch through the corona en route to Earth (where they can cause electrical blackouts days later), so the magnetic field there is a crucial and still misunderstood piece of the space weather puzzle. “This is something we don’t have,” Cauzzi says.

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These close-up photos of the sun could help us forecast space weather - Popular Science
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