There is much excitement around finding liquid water on Mars. And, though high salinity is not good for life, we will only know if it exists there if we look.
October 13, 2015

A collaborative work between D J Spooky and several Dartmouth professors attempts to immerse viewers in a multi-sensorial "science experience" that creates a sort of journey through the cosmos.
October 6, 2015

Let's assume that we could preserve someone's brain after death — and reconstruct the architecture of the brain in great detail. This would be only part of the task.
September 29, 2015

What makes up your body are the remains of stars long gone. That this star stuff got organized to the point of becoming animated, thinking matter is nothing short of wonderful.
September 22, 2015

A curious personalization of science is underway — it's as if scientific issues are simply matters of opinion and not the product of a very thorough process.
September 15, 2015

Humans toy dangerously with things we barely understand — and the consequences could be cataclysmic — but Marcelo says these five experiments shouldn't have driven such fear.
September 8, 2015

We need to find a way to convince people that, like city parks and streets, the air we breathe is a space we share with everyone and, so, we need to keep it clean.
September 1, 2015

Marcelo interviews Shaun Monson on his new documentary about the conflicts between humans, animals and nature.
August 18, 2015

The upcoming documentary Unity is a wake-up call to humanity on the moral duty to respect the diversity of life, which is born from the same seed.
August 11, 2015

In July, scientists working at the Large Hadron Collider announced the discovery of the "pentaquark" particle, clearing up 50 years of false signals and potential sightings.
August 4, 2015

Marcelo wonders what the children watching the flyby will accomplish as they join the ranks of future space explorers. The probes have been there; perhaps now it is our turn.
July 28, 2015
 

Some memories persist for a lifetime, even if sometimes only at the level of uncertain contours. How does the brain do that?
July 22, 2015

Gene manipulation can be of great benefit and harm to humanity — and only time will tell whether our species is mature enough to use the new technology with wisdom.
July 14, 2015

The movie's messages is that, unable to learn from past mistakes, man remains morally in the caves — but with access to increasingly more powerful technologies.
July  7, 2015

The probe found enough energy to send a signal — which hadn't been guaranteed. If all goes well, we may know fairly soon whether the comet it's on carries the stuff of life.
June 30, 2015

Marcelo considers whether there is truth to the phrase "ignorance is bliss," delving into the nature of physical reality and the limits of knowledge.
June 24, 2015

We have to start asking ourselves how long we are going to ignore what is obvious — that our meat-eating culture is not environmentally sustainable.
June 17, 2015

Observing the night sky is like looking through a time machine; every image comes from a different past — a kaleidoscope of times — each telling a different story.
June 3, 2015

When pondering whether a secular society can be moral, we must consider that there are certain values that stand above and beyond culture and faith.
May 27, 2015

Sci-fi thriller Ex Machina explores a variable of artificial intelligence we don't see in most considerations — the potential use of emotions as control.
May 20, 2015