Solar Dynamics Observatory: The 'Variable Sun' Mission

For some years now, an unorthodox idea has been gaining favor among astronomers. It contradicts old teachings and unsettles thoughtful observers, especially climatologists.

"The sun," explains Lika Guhathakurta of NASA headquarters in Washington DC, "is a variable star."

But it looks so constant...


"Understanding solar variability is crucial," says space scientist Judith Lean of the Naval Research Lab in Washington DC. "Our modern way of life depends upon it."

Enter the Solar Dynam [...]

Full story at http://spacefellowship.com/news/art18405/solar-dynamics-observatory-the-variable-sun-mission.html