re: #234 Hecuba’s daughter

Too far away: 1.5 billion light years from here. Not even in our galaxy or any neighboring ones. The signal was sent before there was any life on Earth.

Multicellular life anyway.

But back to the story - the lay person probably does not realize how much energy it takes to make an emission that can be detected even a light year away, not to mention a million, or a billion, light years away.