Marcelo Gleiser

We must unify America around the need for science and STEM education as the only guarantee for prosperity: Only education can keep America great, says astrophysicist Marcelo Gleiser.

The film reminds us we are the sum total of our choices and must consider carefully where they lead — good to remember in these post-election days, and in life, says astrophysicist Marcelo Gleiser.

Thoughts of colonization of other planets aside — stuff that stands far away in the future — our problems are right here and right now, affecting us globally, says Marcelo Gleiser.

In the early 20th century, we weren't able to visualize reactions of tiny matter. We didn't doubt they were there, but we weren't sure of the details. Now we are, says astrophysicist Marcelo Gleiser.

The challenge we face is to keep a healthy balance between power-on life and power-off life — to be sure we don't become something we are not, says astrophysicist Marcelo Gleiser.

California's governor just signed a bill to allow testing of driverless cars. The future is here — but it's important to consider the consequences as development moves ahead, says Marcelo Gleiser.

The hope is that the connectome, a map of all neural connections, will somehow address how physical processes are connected with consciousness, says commentator Marcelo Gleiser.

A liberal arts education was supposed to expose students to the sciences and the humanities without exploring their affinities or overlaps — but this era is coming to an end, says Marcelo Gleiser.

It makes some sense that too much of a good thing may end up being bad for you, but, so far, the science hasn't proved this to be true of running, says Marcelo Gleiser.

There are lessons to be learned in the false detection of alien signals: Sure, we should keep on listening, but we also should understand our role as guardians of Earth, says Marcelo Gleiser.

Where did the world come from? Unless future physicists make new observations from the Big Bang, it's hard to contemplate any science coming from the first originating event, says Marcelo Gleiser.

There is a herolike narrative in science that is not that far from a sports narrative — the striving for success with the hope of bringing something unimagined to the field, says Marcelo Gleiser.

Imagine how sad it would be if, one day, we arrived at the end of knowledge — that would be incomparably worse than embracing doubt as the unavoidable partner of a curious mind, says Marcelo Gleiser.

Science is not out there to kill people's faiths: Science is out there to make sense of the world we live in — and when science gets pitched against religion, everyone loses, says Marcelo Gleiser.

Tribalism is deeply ingrained in our value system — but we can commit to goals without radicalizing them, to support groups without demonizing others, says Marcelo Gleiser.

Even with all the uncertainty in the numbers, we seem to be marching towards a point of saturation, where our current practices and needs will exhaust what the planet can offer, says Marcelo Gleiser.

What would happen if the world's countries armed with nuclear weapons engaged in all-out confrontation? Marcelo Gleiser considers this in the first of a series of essays on our collective future.

Juno's scientists will be the first ones to see things about Jupiter no one has ever seen before. For a few brief moments, they will share a silent bond with Galileo, says Marcelo Gleiser.

Imagine how sad it would be if we one day arrived at the end of knowledge — no new questions to explore, no boundaries to expand, no great discoveries ahead, says astrophysicist Marcelo Gleiser.

Even if chiral molecules are part of the ingredients of new planets, the choice of chirality could vary randomly from star-forming region to star-forming region, says Marcelo Gleiser.