Discoveries using the telescopes on Mauna Kea

[TomK]

Here's a remarkable image taken by Subaru on Mauna Kea of Jupiter's rings. We've known it has rings for decades, they are just much less spectacular than Saturn's. The combination of filters used in creating the image shows that the composition of the rings are different and doesn't have water ice, unlike Saturn's rings. I'll have to read up on why that is, but Jupiter is likely massive enough to create its own heat plus its own radiation which prevents the formation of water ice in its ring.