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Harvard Astronomer: Space Radio Bursts Could Be Signs Of Alien Ships05:06Download

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A 64 meter radio telescope at the NASA deep space communications complex in Canberra. (Andrew Fysh/Flickr)MoreCloseclosemore
A 64 meter radio telescope at the NASA deep space communications complex in Canberra. (Andrew Fysh/Flickr)

When scientists detected enormous bursts of light coming from outside our galaxy, they came up with several theories about what was behind them: Maybe an exotic new star, maybe a sun that had collapsed.

But one Harvard astronomer says that maybe these bursts were created by an advanced alien civilization.

Guest

Avi Loeb is the chair of the department of astronomy at Harvard University, which tweets @harvard.

This segment aired on March 15, 2017.

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