The Sun on March 29, 2001 in visible and ultraviolet light
The Sun is is the closest star to Earth and is the center of our solar system. The Sun provides Earth with almost all of our planet's energy.
Regions of the Sun
Regions or "parts" of the Sun as well as features and phenomena that appear on the Sun or in its atmosphere.
What is Space Weather?
The Sun provides Earth with life-sustaining heat and light. Magnetic storms from the Sun sometimes bombard Earth, producing the spectacular auroral light shows.
Learn all about sundogs, an optical phenomenon in the atmosphere.
Photographing the Aurora
Only visible at high latitudes, and at certain times, not everyone can see the aurora. However, photographs let us all know what it looks like.
Earth's magnetosphere
Earth's magnetosphere is like a magnetic "bubble" in space around our planet.
Sun's Chromosphere (lower atmosphere)
The Sun's chromosphere is the lower portion of the solar atmosphere.
Solar Flare
Solar flares are huge explosions on the Sun that emit lots of electromagnetic radiation.
Coronal Mass Ejection (CME)
A Coronal Mass Ejection (CME) is a powerful, explosive "storm" from the Sun. CMEs hurl millions of tons of particle radiation outward into space.
Sun and Space Weather Image Gallery

Images and diagrams of the Sun, solar phenomena such as sunspots and flares, space weather, Earth's magnetosphere and upper atmosphere, the aurora and more.

Sun and Space Weather Videos

Short video clips about sun and space weather - including the the sun's magnetic field and the Earth's global electric circuit

sun and space weather games and simulations
Test your knowledge with one of our games or gain a deeper understanding of the sun and space weather through a simulation.
Sun and Space Weather Activities
Solar energy is the reason weather changes and the reason that Earth isn’t frozen. These activities explore energy, albedo, light, and color.