Astronomy Fun Fact:Here's proof that one has to be careful in any interpretation of what we see, whether it be on Earth or in a distant galaxy. Wouldn't you think "impact crater" if you saw this type of structure on Mars, for instance?
50 kilometers is about 30 miles.
That is a cool picture.
Very strange feature.
Looks like the structure above a salt dome. Any maps of this structure showing dips?
