Marcelo Gleiser

When we fill up our garbage cans, we empty them into bigger ones. The biggest one, we seem to think, is our planet. We can't keep on filling it thinking it's a bottomless pit, says Marcelo Gleiser.

In reality, Earth's days are getting longer. To change our perception that time goes more quickly as we age, we need to carve in a bit of time to just be, says astrophysicist Marcelo Gleiser.

The transcendence of human into information is either almost here, a step in evolution — or an impossibility, a mad dream of people who can't accept the inevitability of death, says Marcelo Gleiser.

Blogger Marcelo Gleiser imagines a conversation between a geneticist, a Buddhist, a physicist, a psychologist, and a theologian about life and the future of humanity.

The prospects can be either beatific or terrifying depending where you come from but, whatever your choice, transhumanism is here to stay, says blogger Marcelo Gleiser.

The blockbuster movie Logan brings to the fore the moral choices of those in power as they apply scientific knowledge. It is so utterly sad it's painful to watch, says astrophysicist Marcelo Gleiser.

There's a philosophical discussion considering the possibility that we are in a computer simulation, run by posthumans. Marcelo Gleiser asks: Why would an advanced species waste their time this way?

Seven Earth-size planets have been found to orbit a dwarf star 40 light-years away. Finding life as we know it there would mean it's likely elsewhere in galaxy, too, says physicist Marcelo Gleiser.

The issue of the right or wrong use of science emerges in the colliding front between scientists and their supporting sponsors, be they the government or the private sector, says Marcelo Gleiser.

If there is a central lesson in the movie, it is that united we win; that what makes America great is not segregation and intolerance, but openness and inclusiveness, says physicist Marcelo Gleiser.

Carlo Rovelli's new book is a gem: It's full of wonderful analogies and imagery — and is a celebration of the human spirit, in "permanent doubt, the deep source of science," says Marcelo Gleiser.

Nature tends to follow rules, some of which we can understand. But we have limitations and are surrounded by mystery, says physicist Marcelo Gleiser, who recounts an unexplained event in his own life.

The expansion of the universe was sealed as fact in 1965, but the seeds for this revolutionary take on the cosmos and our place in it were planted in 1917 by a daring Einstein, says Marcelo Gleiser.

Despite overall poor reviews, a saving grace of the film is that the plot makes us reflect on our own losses and how we choose to deal with them, says commentator Marcelo Gleiser.

As the year ends, it's worth viewing this clip from the film Roving Mars in an effort to start the new year with hope and optimism for what we can accomplish as we work together, says Marcelo Gleiser.

If nothing else, the story of the Star of Bethlehem tells us of a time when looking up to the skies in awe and wonder was part of most people's lives, says astrophysicist Marcelo Gleiser.

As a species, we can be proud of our remarkable scientific prowess: This is an ongoing effort, a narrative we build slowly, gathering data and ideas that stretch our imagination, says Marcelo Gleiser.

Once we mix in real science with the possibility of extraterrestrial life, we can learn much about our current dilemmas and, hopefully, about our survival as a species, says Marcelo Gleiser.

Oil companies once led in climate science; if they put a fraction of their profits into the search for alternative renewable fuels, they could ensure our collective well-being, says Marcelo Gleiser.

Arrival speaks to all of us, making us think about where we are in life and what we've been doing with the time we have — confronting us at the individual and collective level, says Marcelo Gleiser.