Skip to main content

Physical sciences/Physics/Applied physics/Applied optics/Field of view

For more than a century, researchers have been puzzled by the nature of the filaments known as the penumbra in sunspots. Understanding the structure of the penumbra, which surrounds a sunspot’s dark core, may help scientists explain the energy flow below the surface of sunspots. The research appears in the 10 June issue of the journal Science.