Peter Schultz Surface Quotations

We know we're looking at a geologically active body whose surface is changing over time. Now we can begin to understand how and why these jets erupt.

So we know we're looking at a geologically active body whose surface is changing over time. Now we can begin to understand how and why these jets erupt.

The most significant finding is the nature of the surface of the comet. We now know that it isn't covered in a hard crust. It's a fine-grained, loosely glued layer of organic powder and ice. You couldn't make a snowball on Tempel 1.