Marcelo Gleiser appears in the following:
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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?
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.
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.
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.
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.
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?
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.
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?
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?