Huge volcano plume on Jupiter's moon (Io)

Huge volcano plume on Jupiter's moon (Io)

Source Link: news.bbc.co.uk

A massive dust plume, estimated to be 150 miles (240km) high, can be seen erupting from Io's Tvashtar volcano.

It is surrounded by a dark patch the size of Texas consisting of the fallout from the eruption.

Europa is an attractive target; planetary scientists consider it one of the best places in the Solar System to find extraterrestrial life forms.

Beneath its outer shell of ice, the moon is thought to host an ocean of water warmed by heat from the interior.

(visit the link for the full news article)

In the picture (link), I like how the plume looks just like a glass dome.
(BUt of course it is a long exposure shot)

Well speaking of things like that, did you notice the interesting features on the right side of the moon? Here is a zoom in:



Approximate same area without long exposure:



Closeup of Toadmund's "Glass Dome":



Same area without long exposure and without dust plume / glass dome:




I wonder what Hoagland says about these features? Cool stuff!

Ok, since that didn't work very well, and I can't edit, I will try this again in another post... Thanks to enjoies and Sauron (I think) for helping me with this.

Here is the zoom in with long exposure:




Approximate same area without "long exposure":




Closeup of Toadmund's "Glass Dome":




Same area without long exposure and without dust plume / glass dome:




What are those features that stick so far out on the right hand side in the first picture? More "plumes"? Some kind of error in the exposure?