I think there is no chance that the blue ring is caused by geyser activity. We don't know what the composition of the particles is. |
It's funny that this research got started by something we didn't see. |
This model can be transferred directly to what we now see in Uranus, although we still need to understand the details of the process. |
We went out in October to image both rings and we simply couldn't see the outer one. We should have easily seen it if it was a normal ring. The interesting part was that the outer ring was the one that was the brighter one in the Hubble images. |
When dust is smaller than or comparable to the wavelength of light, the reflected color is dominated by particle size effects rather than the intrinsic color of the material. |