"CAMBRIDGE, Mass. — Among astrophysicists, Abraham Loeb is known for his creative and prolific attempts to understand the early universe.

"Dr. Loeb, known as Avi, specializes in 400,000 years to one billion years after the Big Bang. He has published more than 400 papers on the nature of early stars, galaxies, planets and black holes.

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New York Times: http://nyti.ms/1rPpmfL

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