Marcelo Gleiser Marcelo Gleiser

On the Alien Question: Where Are They?

The great physicist Enrico Fermi asked this question in the 1950s. There are more than 50 possible "solutions" to Fermi's Paradox: Here, Marcelo explores a few.
November 22, 2017

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Marcelo Gleiser Marcelo Gleiser

What Smart Aliens Could Teach Us About Survival

Once we mix in real science with the possibility of extraterrestrial life, we can learn much about our current dilemmas and, hopefully, about our survival as a species.
December 20, 2016

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Marcelo Gleiser Marcelo Gleiser

Are Aliens Talking to Us?

There are lessons to be learned in the false detection of alien signals: Sure, we should keep on listening, but we also should understand our role as guardians of Earth.
September 14, 2016

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Marcelo Gleiser Marcelo Gleiser

Locating the Cradle of Life

Given that there are trillions of worlds in our galaxy alone, circling hundreds of billions of stars, it would be a true statistical fluke if Earth were the only harbor for life.
February 9, 2016

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Marcelo Gleiser Marcelo Gleiser

Should We Be Afraid Of Aliens?

The notion that other intelligences exist in the universe is pervasive in popular culture: Aliens are often portrayed as evil invaders. Marcelo ponders whether we should worry.
February 25, 2015

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