Streams

Marcelo Gleiser

Marcelo Gleiser appears in the following:

The Little Comet Probe That Could

Wednesday, November 19, 2014

You may be carrying comet dust in your bones and blood. Probe Philae has shown that, now, we can go collect the original stuff. That's where science becomes magical, says commentator Marcelo Gleiser.

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The Science Of 'Interstellar'

Thursday, November 13, 2014

Few, if any, movies have been this faithful to science and still managed to tell a gripping tale, says commentator Marcelo Gleiser — though some liberties are taken at points.

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Despite Disasters, Explore We Must

Wednesday, November 05, 2014

The crash of Virgin Galactic's spacecraft has renewed criticism of commercial space exploration. Commentator Marcelo Gleiser says disasters and loss of life are the cost of pushing humanity's limits.

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Can Scientific Belief Go Too Far?

Wednesday, October 29, 2014

Can scientists have too much faith, insisting that an idea is right despite contrary evidence? Commentator Marcelo Gleiser says yes, which could pay off in the end — or be a colossal waste of time.

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The Void Is A Busy Place

Wednesday, October 22, 2014

Is there such a thing as complete emptiness or nothingness? Not according to modern physics, where empty space gets more active all the time, says commentator Marcelo Gleiser.

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The Never-Ending Climb Of Mount Science

Wednesday, October 15, 2014

Commentator Marcelo Gleiser says the mystery that surrounds us will always be here; there is no complete or final knowledge, and this fact gives science a unique character.

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Superintelligence: Triumph Or Threat?

Wednesday, October 08, 2014

If we are able to create intelligent machines, how can we guarantee they will keep us alive and well, as opposed to wiping us out? Nick Bostrom explores the question in Superintelligence.

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Should We Live Life, Or Capture It?

Wednesday, October 01, 2014

Cell phones and social media may be changing the way we engage in — and experience — life. We need to be concerned if they have come to define how we live, says commentator Marcelo Gleiser.

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A Liberal Arts Curriculum In 2 Minutes

Wednesday, September 24, 2014

This short video tells the story of humanity, from beginning to end. Commentator Marcelo Gleiser says it invites us to reflect on who we are, where we came from and how we will chart our future.

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If We Create Life, Who Will Control It?

Wednesday, September 17, 2014

Commentator Marcelo Gleiser says the prospect of making living creatures is as exciting as it is terrifying — and the stakes are so high, that the discussion must be brought into the open.

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Science And Spirituality: Could It Be?

Wednesday, September 10, 2014

Commentator Marcelo Gleiser says we must let go of the connection between spirituality and the supernatural and realize that science is an expression of our fascination with the mystery around us.

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The Challenge Of Betting On A Scientific Idea

Wednesday, September 03, 2014

In taking sides for or against a theory, scientists place their faith on an idea. Commentator Marcelo Gleiser asks what happens when the idea can't be tested or validated. Is it still science?

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The Universe Is Still Dark After All These Years

Wednesday, August 27, 2014

We've learned so much, yet we still don't know the composition of 95 percent of the cosmos. Commentator Marcelo Gleiser says it is good to stay humble and keep an open mind as the search continues.

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Soft Immortality: Would You Do It?

Wednesday, August 20, 2014

Is immortality something desirable, or a many-headed monster? Commentator Marcelo Gleiser says that as medical science extends our lifespan, the question becomes more real all the time.

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We Don't Need To Be Created To Be Relevant

Wednesday, August 13, 2014

Life doesn't necessarily lead to intelligence. So, says commentator Marcelo Gleiser, the fact that we are thinking, molecular machines should mean something — and redefine the way we relate.

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No End In Sight? No Problem!

Wednesday, July 30, 2014

Our quest for knowledge will never end because we just can't know everything, no matter how hard we try, says commentator Marcelo Gleiser. But that's a good thing. Here's why.

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Without Conflict There Is No Growth

Wednesday, July 23, 2014

Conflict is the force that drives change. Commentator Marcelo Gleiser asks: What are the values that we should champion as we fight for a better future?

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What The World Needs Now Is A New Enlightenment

Wednesday, July 16, 2014

New human possibilities materialized with the arrival of the the Enlightenment in the 17th and 18th centuries. Commentator Marcelo Gleiser says its time to pick up the banner and move forward again.

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Physics Feels The Pull Of Nature's Biggest Mysteries

Wednesday, July 09, 2014

We don't have all the answers; many big questions hang over the world of theoretical physics. Is this business as usual? Or symptom of a major crisis in our understanding of nature?

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The Game Of The Gods Keeps Us Watching

Wednesday, July 02, 2014

If nature is like a game played by the gods, scientists are the observers trying to figure out the rules. Physicist Marcelo Gleiser asks: Can our knowledge ever be complete?

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