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Tuesday, April 23, 2024 | Back issues
Courthouse News Service Courthouse News Service

As Seen in Space: Solar Filaments

NASA's Solar Dynamics Observatory came across an oddity this past week that the spacecraft has rarely observed before: a dark filament encircling an active region. Solar filaments are clouds of charged particles that float above the sun, tethered to it by magnetic forces.

NASA's Solar Dynamics Observatory came across an oddity this past week that the spacecraft has rarely observed before: a dark filament encircling an active region. Solar filaments are clouds of charged particles that float above the sun, tethered to it by magnetic forces.

Categories / Science

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