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Harvard astrophysicist Avi Loeb

Live Science

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'Space trash' will lead us to intelligent aliens, Harvard astrophysicist Avi Loeb says

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Harvard astrophysicist Avi Loeb led an expedition near Papua New Guinea to dredge up hundreds of tiny metal spheres he proposed were remnants of an interstellar meteor that broke up over the Pacific Ocean a decade earlier .

The expedition's lofty goal garnered criticism from the scientific community, but for Loeb , even a faint possibility of learning something new about our cosmos is reason enough to investigate.

Astronomer says he's hopeful that we will find evidence of alien life in his lifetime.

He says he has received pushback from papers critical of his findings.

He plans to return to Papua New Guinea to look for more evidence of an interstellar meteor .

Rubin : We need to change our approach to searching for alien life for the first time.

Brandon Brandon is the space/physics editor at Live Science .

He says space exploration sounds like a generic activity that an advanced civilization will engage in.

We should search for extraterrestrials, he says.

Brandon : There is a chance we will find something remarkable.

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