Astronomy Cast Ep. 388: Megastructures

By Fraser Cain - October 19, 2015 at 2:56 PM UTC | Exoplanets

This week astronomers announced an unusual transit signal from another star. Although it's most likely a natural phenomenon, one remote possibility is that this is some kind of alien megastructure. Freeman Dyson and others have considered this idea for decades. Today we'll talk about the kinds of structures that aliens might want to build.

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Fraser Cain

Fraser Cain

Fraser Cain is the publisher of Universe Today, founding the website in March 1999. He's also the co-host of Astronomy Cast.