Although we haven't seen much confirmed evidence that there's intelligent life beyond our planet, that doesn't mean we don't see some strange phenomena every now and then that can get our hopes up.
One of the biggest of these intergalactic teases have come in the form of mysterious bursts of radio signals that our planetary scanners occasionally detect. Sure, aliens aren't even close to the only explanation for them, but thinking there could be a sliver of chance that they're doing it can be much more frustrating than knowing that there's no chance at all.
But the good news is we're getting closer to finally getting an answer either way thanks to a powerful radio telescope.