Pope Francis is preparing to urge world leaders to take action on global warming — an example of how scientific and religious leaderships can work together for the common good.
May 13, 2015

In honor of Earth Day, Marcelo points us to a trailer of the new movie, which calls for a change in perspective — a new way of relating to each other and to the planet.
May 6, 2015

Einstein's greatest lesson may be that reality is not what it seems; what we perceive as real is a distortion due to how our brains take in the world around, and within, us.
April 29, 2015

To put God in our current knowledge gaps would not further our understanding of the universe. For that, we need science and its stubbornly secular approach.
April 22, 2015

The painter's creations during his blue period mirrored nature's turbulent flows, as if his mind somehow tapped into a universal archetype.
April 15, 2015

The majority of individual medical studies tend to be either premature or badly formulated, so it's best to be patient and wait for the truth to become evident.
April 8, 2015

This month, the powerful particle accelerator will be back up and running — bigger and bolder than before. Marcelo says it may bring big discoveries or be nature's big tease.
April 1, 2015

Leaving politics aside, it is clear that water usage and waste are central issues of our time and we may all do well by finding ways to cut down.
March 22, 2015

Little, fabulous, flying entities capable of magical deeds that defy what we think reasonable in this world may exist, but we couldn't confirm this directly.
March 18, 2015

Oliver Sacks is a rare soul-reader among us — and we are blessed to have him as a listener, at once scribe and bard of the human condition.
March 11, 2015

Traditional science has little to offer our longing for permanence, leading many to disenchantment. Can we be scientific and satisfy our desire for transcendence?
March 4. 2015

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

The fact that science opens a window for us to peer into our deep past should be a cause for celebration, irrespective of what we find when we are able to look.
February 18, 2015

Marcelo ponders this question: Would you be comfortable dying, knowing that another you, a copy, would still be alive?
February 11, 2015

Our planet is getting steadily warmer — and ignoring this fact is like stepping in front of a train and hoping that if we close our eyes, it won't hit us.
February 4, 2015

Photographer Jacob F. Lucas put together a book called Commute Culture, addressing how technology is changing human connections. Marcelo caught up with him for an interview.
January 28, 2015

At this time of introspection and self-analysis, Marcelo shares some thoughts that have come to him in the course of writing books and essays over the years.
January 14, 2015 

While Marcelo enjoys sci-fi speculation like most people, he also thinks there is a chance, in viewing recent films, to learn something about ourselves and our planet.
December 31, 2014

The Theory of Everything celebrates the spirit of a man who has fought for all of his adult life to uncover the mystery of time.
December 23, 2014

There is no reason to expect that we can get to the ultimate nature of reality. We must learn to live with the mystery, with the fact that we cannot know everything.
December 17, 2014