Welcome to Earth: a travel guide for aliens | Dean Burnett

This week's apparent discovery of a megastructure orbiting a star surely means extraterrestrial tourists will soon start arriving. They'll need this handy guide ...

A number of media sources are reporting that astronomers have spotted what may be a giant megastructure orbiting a distant star. Such a thing could only be the work of advanced aliens, capable of engineering and building on such a scale that it becomes visible from light years away.

In fairness, it's probably not that. That's just one interpretation of the unusual readings from a certain star, and an unlikely one at that. But it's the most interesting interpretation, so obviously it's getting the most attention.