Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Changing seasons on Saturn Comparison of Saturn's northern hemisphere in October 2004 (left) and July 2008 (right), showing the retreat of the ring shadow (which is mostly hidden behind the rings themselves in the 2008 image) and the fading of the blue color that was prominent in 2004. NASA / JPL-Caltech / SSI