The Sun is never still. Its energy reaches Earth every day — shaping our atmosphere, our technology, and the sky above you.
Where space weather begins.
Follow solar flares, coronal mass ejections and geomagnetic storms as they travel from the Sun to Earth.
Track space weatherSolar surface and magnetic loop structure
Tonight, look up.
Planets, the Moon, meteor showers and observing conditions for exactly where you are.
Explore your skyUnderstand what you're seeing.
Clear, scientific explanations — from solar storms to black holes and the scale of the universe.
Start learningBlack hole accretion disk — NASA Goddard general-relativity simulation, J. Schnittman
