Sunspots are temporary spots on the Sun's surface that are darker than the surrounding area. They are regions of reduced surface temperature caused by concentrations of magnetic flux that inhibit …

Mar 10, 2025 · Sunspots are the visible component of active regions, areas of intense and complex magnetic fields on the Sun that are the source of solar eruptions. Sunspots can be seen on the …

On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar ...

Sunspots appear in a wide variety of shapes and forms. The darkest area of a sunspot (also the first to be observed) is called the umbrae. As the sunspot matures (becomes more intense), a less dark, …

Mar 25, 2026 · Sunspots are dark regions on the Sun caused by magnetic fields. Learn how they form, their structure, solar cycle, and effects on Earth.

Apr 13, 2026 · Why are sunspots relatively cool? It’s because they form at areas where magnetic fields are particularly strong. These magnetic fields are so strong that they keep some of the heat within …

Mar 24, 2026 · The images are provided by the Solar Dynamics Observatory (SDO) mission. Status updates are provided at SDO's JSOC Emergency Resources page.

A New Look at Sunspots is Helping NASA Scientists Understand Major Flares and Life Around…

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Apr 13, 2023 · Sunspots are dark, planet-size regions of strong magnetic fields on the surface of the sun. They can spawn eruptive disturbances such as solar flares and coronal mass ejections …