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Marcelo Gleiser

Marcelo Gleiser is a professor of natural philosophy, physics, and astronomy at Dartmouth College. He is a Fellow of the American Physical Society, a recipient of the Presidential Faculty Fellows Award from the White House and NSF, and was awarded the 2019 Templeton Prize. Gleiser has authored five books and is the co-founder of 13.8, where he writes about science and culture with physicist Adam Frank.

Andromeda Galaxy

100 Years after the “Great Debate”: How Edwin Hubble Expanded the Cosmos

In 1924, Edwin Hubble found proof that the Milky Way isn't the only galaxy in the Universe.
Adoration of the Magi with Saint Anthony Abbot

What was the Star of Bethlehem?

Never stop looking at the skies in wonder.
This artist concept depicts "multiple-transiting planet systems," which are stars with more than one planet.

To Find a New World, Watch How a Planet Dances with Its Star

Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.