Last day I saw the news about some Australian cosmologists and scientists detected certain radio wave emitted from somewhere far about 550 light years, it was an explosion since the radio waves were only for a few seconds. The first detection of these waves were in 2007, and now in 2015 it was the first time the waves were in real time. We can suspect this as people from other planet trying to make contact with us. Since the Radio source is emitted from 550 light years distance, calculating the velocity of radio waves approximately they have been having radio transmitting tech around 800 or 1000 years ago. So they are well developed than us. If they were able to create wormholes then, they will surely reach us ! Hope they will reach us and we will be having an ally with them. Size of our milky-way galaxy is 100,000 to 120,000 light years, therefore the source was from our galaxy itself.