The Universe has been here forever, and it will be here forever. Our means of dealing with scientific discoveries require us to only consider the life of the Universe back only to the Big Bang, so that ties our hands when it comes to what we think these radio waves are. They could very well be relay stations boosting signals from sources way beyond the visible Universe. Our own DNA/RNA didn't come from star dust just dancing around in space, and I seriously doubt that we, as a people, are the center of the Universe.
The Universe has been here forever, and it will be here forever. Our means of dealing with scientific discoveries require us to only consider the life of the Universe back only to the Big Bang, so that ties our hands when it comes to what we think these radio waves are. They could very well be relay stations boosting signals from sources way beyond the visible Universe. Our own DNA/RNA didn't come from star dust just dancing around in space, and I seriously doubt that we, as a people, are the center of the Universe.