The data from the Cassini spacecraft is said to strengthen the idea that Enceladus harbours a sub-surface sea.

BBC: Enceladus has 'spreading surface'

Although there's a rough total of reported cases, we don't know how many there have really been, and how often these are serious, because we have little idea how many people have sub-clinical symptoms.

BBC: A scanner to detect terrorists

Since most spin-ins are paid for with the parent's stock, it's a good idea to short shares in the parent at the same time you buy shares in the sub.

FORBES: A Different Spin