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The Hidden Corona: Sun’s Outer Atmosphere

The uppermost portion of the Sun's atmosphere is called the corona.
Resource Type: Information

Solar Flares

Solar flares are huge explosions on the Sun that emit lots of electromagnetic radiation.
Resource Type: Information

Solar Prominences

Solar Prominences are large, loop-like structures that extend from the surface of the Sun.
Resource Type: Information

Solar Variation

Solar Variation

Meet the Sun

The Sun is the closest star to Earth and is the center of our solar system. Learn about fun Sun facts.
Resource Type: Information

Coronal Loops

Coronal loops are bright arcs of plasma in the Sun's atmosphere. They reveal the presence of powerful magnetic disturbances.
Resource Type: Information

Inside the Sun

Inside the Sun are three distinct layers: the core, radiative zone, and convective zone.
Resource Type: Information

The Surface of the Sun

The surface of the Sun is called the photosphere.
Resource Type: Information

Sunspots

Sunspots are dark, planet-sized regions that appear on the surface of the Sun, created by regions of powerful magnetic fields.
Resource Type: Information

Three Years of the Sun

Time-lapse movie of three years of the Sun as observed by NASA's SDO satellite.
Resource Type: Videos
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