What would be the best way for an advanced alien civilisation to make its presence known across the galaxy? It might be to make the planets in its star system dance in mathematical sequence. Many ...

A cosmologist suggests we should look for exploration, along with energy signatures, to try and find aliens. Dyson spheres of some kind may be built to harvest energy from dark matter in black holes.

It was only a few weeks ago that astronomers announced that they received what is called Fast Radio Bursts from deep space. Now, a Harvard scientist and astronomer have said that it could be aliens ...