Solar Variability

Credit: NASA, Posted on: Sunday, 11 May 2008, 09:34 CDT Download full size image

The sun radiates huge amounts of electromagnetic energy in all directions. Earth is only one small recipient of the sun's energy; the sun's rays extend far out into the solar system, illuminating all the other planets.

More Images

Mars
Echus Chasma.The High-Resolution Stereo Camera (HRSC) on board ESA’s Mars Express has returned images of Ech...

---

Universe
Paisley Skies.Twirling vortices swim through a vast ocean of hydrogen and helium in Saturn's far north. ...

---