Astronomy Cast Ep. 388: Megastructures

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.

Read the rest of Astronomy Cast Ep. 388: Megastructures (46 words)

© Fraser for Universe Today, 2015. |
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