[RadioAstronomer]

Does the fact that it can not be proven render it a theory "without merit"?

Yes! However, proven is a misnomer. Tested is a better word. Try to disprove that there are not invisible undetectable pink elves in your garden. Neither falls within the realm of science.

[Jaguar1942]

Mine are actually green, that's what my 3 year old claims, although I have no idea how she saw them, since they are invisible....LOL