"There's nothing in there."
When she first said that, I thought she meant that all the scientific instruments registered an empty space, a there-is-nothing-there, while the human eye insists that there's some sort of a liquid.
But then she clarified that the liquid is composed entirely of elements not found on Earth. Now, does that mean 1) elements known in the Periodic Table, but not found on Earth; or 2) elements not even found on the Periodic Table? And if its #2, then...um, aren't pretty much all the unlisted items on the Periodic Table being varying degrees of radioactivity?