JefferyTheWalrus

In the Magic School Bus episode Lost in the Solar System, Arnold removes his helmet on Pluto during an argument and his head is instantly frozen in a block of ice. Although this is obviously not what would happen, does any water ice exist on Pluto? Has the probe discovered more or less water than expected, or any water at all?

Not sure if your background is in the topic, but what are the leading techniques for determining if something is a 'signal'? I recall something about information on the Voyager disk being encoded according to a constant that had something to to with a hydrogen atom- is this something we look for in irregular radio signals?