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.

I start with a remarkable quote:

"I believe the intellectual life of the whole of Western society is increasingly being split into two polar groups ..."

So wrote the British physicist and novelist C. P. Snow in his famous "The Two Cultures" Rede Lecture delivered at Cambridge University in 1959.

There's no question that running changes your heart.

The issue is whether these changes are good or bad. I don't mean the occasional 3 miles once or twice a week, although even this minimal amount of exercise seems to have positive health benefits.

On Aug. 15, the news broke that a Russian radio telescope detected strong signals from outer space.

Opinions may diverge initially — but once we start to think about it, no question is harder than figuring out the origin of everything.

The more popular phrasings go something like, "Where did the world come from?" or "Why is there something rather than nothing?" This is the question of creation, of how the universe and everything in it came to be. And, although we've made great progress towards understanding the universe and its history, we are still far from understanding its origin.

Sounds like the usual narrative of sports events: the long hours of training and complete devotion, the expectation of results that may define new records or new ways of looking ahead, the excitement preceding the meet. Then, when the time comes, it can be total frustration or glory. Equipment failure, miscalculations, human error; or triumph, new heights achieved, new horizons revealed, old records broken.

There is a herolike narrative in science that, perhaps surprisingly, is not that far from a sports narrative.

Sometimes things seem to happen for a reason. Some people call these events happy coincidences, others call them the work of God, or of many gods, while yet others see them as manifestations of one's karma.

This is the fourth in a series of essays concerning our collective future. The goal is to bring forth some of the main issues humanity faces today, as we move forward to uncertain times. In an effort to be as thorough as possible, we will consider two kinds of threats: those due to natural disasters and those that are man-made. The idea is to expose some of the dangers and possible mechanisms that have been proposed to deal with these issues. My intention is not to offer a detailed analysis for each threat — but to invite reflection and, hopefully, action.

This is the third in a series of essays concerning our collective future. The goal is to bring forth some of the main issues humanity faces today, as we move forward to uncertain times. In an effort to be as thorough as possible, we will consider two kinds of threats: those due to natural disasters and those that are man-made. The idea is to expose some of the dangers and possible mechanisms that have been proposed to deal with these issues. My intention is not to offer a detailed analysis for each threat — but to invite reflection and, hopefully, action.

This is the second in a series of essays concerning our collective future. The goal is to bring forth some of the main issues humanity faces today, as we move forward to uncertain times. In an effort to be as thorough as possible, we will consider two kinds of threats: those due to natural disasters and those that are man-made. The idea is to expose some of the dangers and possible mechanisms that have been proposed to deal with these issues. My intention is not to offer a detailed analysis for each threat — but to invite reflection and, hopefully, action.

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