Marcelo Gleiser

Marcelo Gleiser is a contributor to the NPR blog 13.7: Cosmos & Culture. He is the Appleton Professor of Natural Philosophy and a professor of physics and astronomy at Dartmouth College.

Gleiser is the author of the books The Prophet and the Astronomer (Norton & Company, 2003); The Dancing Universe: From Creation Myths to the Big Bang (Dartmouth, 2005); A Tear at the Edge of Creation (Free Press, 2010); and The Island of Knowledge (Basic Books, 2014). He is a frequent presence in TV documentaries and writes often for magazines, blogs and newspapers on various aspects of science and culture.

He has authored over 100 refereed articles, is a Fellow and General Councilor of the American Physical Society and a recipient of the Presidential Faculty Fellows Award from the White House and the National Science Foundation.

Any doubts that science has a dark side were extinguished when, on August 6, 1945, an American Air Force B-29 bomber dropped the atomic bomb Little Boy on Hirsoshima.

Three days later, Fat Man, a plutonium implosion-type bomb, was dropped in Nagasaki, prompting Japan to surrender.

We named our science and culture commentary 13.7: Cosmos & Culture when it launched nearly nine years ago.

At the time, the universe was believed to be 13.7 billion years old. But according to data released from the Planck satellite since, it took a bit longer: 13.8 billion years from the Big Bang to this blog.

Here's how it (the commentary, not the Big Bang) came to be:

There is a paradox with living as a human nowadays.

A 2014 article from the United Nations states that about 54 percent of the human population lives in urban areas (more by now), a proportion that is projected to increase to 66 percent by 2050. By 2045, the report says, more than six billion people will crowd cities.

Marcelo Gleiser is a theoretical physicist and writer — and a professor of natural philosophy, physics and astronomy at Dartmouth College. He is the director of the Institute for Cross-Disciplinary Engagement at Dartmouth, co-founder of 13.7 and an active promoter of science to the general public.

If movie critics have kept you from watching A Wrinkle in Time, take a second look.

This is not one of your typical kids' movies that also caters to the adults that take them to the movie theater. Those are fun, of course, especially for the adults, even if many puns and jokes fly over the heads of most of the youngsters in the room. Think The Lego Movie.

"Hauntingly beautiful." "Terrifying and seductive." "A bit too crazy for me."

These are some viewer reactions after watching Alex Garland's Annihilation, a fantasy sci-fi drama that leaves you in a weird state for days.

Is humanity doomed? Are we one of the last generations of homo sapiens — soon to be supplanted by engineered cyberbeings, with a distant semblance to their creators (us)?

Who has no regrets about things done in the past? Wouldn't it be nice if, somehow, we could go back to tweak a couple of bad decisions?

This sounds (and as we will see, is, to a certain extent) like science fiction.

As the fox told the prince in Antoine de Saint-Exupéry's wonderful fable The Little Prince: "What is essential is invisible to the eye."

If the fox had not been talking about love, she could have been referring to the elementary particles of matter, the building blocks of everything that exists. The poetry here is in knowing that the world is made of tiny, invisible bits of stuff that carry, in them, the story of creation itself.

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