Imagine a super-advanced civilisation capable of building on a galactic scale, enjoying complete mastery of the most exotic laws of physics. You'll need to think big, like Dr. Albert Jackson at Triton Systems in Houston, whose paper 'A Neutrino Beacon' offers a new take on alien megastructures.

As Freeman Dyson, Professor Emeritus at the Institute for Advanced Study in Princeton, once wrote:

“When we look into the universe for signs of artificial activities, it is technology and not intelligence that we must search for. It would be much more rewarding to search directly for intelligence, but technology is the only thing we have any chance of seeing.”