To see new gullies and other changes in Mars surface features on a time span of a few years presents us with a more active, dynamic planet than many suspected. |
We think this is a tight, narrow ring of rocky objects similar to those in our asteroid belt, except this ring is five AU from its star, instead of two-to-three AU, the distance between our asteroid belt and the sun. |
What happened a year and a half ago was an aberration. There's a lot of goodness in Kevin Whittaker. |
What the Mars orbital camera has revealed from this long and detailed study of the Red Planet is a dynamic Mars, a planet that can change – not on the mind-boggling millions and billions of years, but on the order of years and decades. |