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Solar flares — like the one captured by NASA's Solar Dynamics Observatory in this extreme ultraviolet image — can either be confined to the Sun's surface or erupt into space. Given the disruption the largest of these eruptions can cause to Earth's radio communications and satellites, astronomers are working to better understand what causes some flares to stay trapped while others erupt. To learn more, read our AAS Nova highlight and the corresponding research article in the Astrophysical Journal Letters. [NASA/SDO]
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