Streams

Marcelo Gleiser

Marcelo Gleiser appears in the following:

Viewing A Universe In Flux

Wednesday, May 20, 2015

The phenomenally successful Hubble Space Telescope turned 25 last month.

To celebrate the occasion, the Hubble team released a spectacular photo of a "stellar nursery," a region of space where huge amounts of gas and dust churn dramatically under gravity's never-resting arms to create new stars and, with them, new ...

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Merging Global Values In A More Secular America

Wednesday, May 13, 2015

We have an African-American president and may soon have a female president. But would Americans ever elect an atheist or agnostic president?

Perhaps in a decade or so.

A new Pew Research Center survey, dramatically titled "America's Changing Religious Landscape," has painted a somewhat surprising picture of the decline ...

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Are We To Become Gods, The Destroyers Of Our World?

Wednesday, May 06, 2015

In the stylish new sci-fi thriller Ex Machina, Frankenstein's old theme re-emerges in a beautifully designed setting: Instead of the Gothic castle we have a spectacular estate in a vast mountainous wilderness, home of the recluse genius who wants to create the first true artificial intelligence.

As in Mary ...

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Pope's Coming Statement On Global Warming Will Be Significant

Wednesday, April 29, 2015

It is fitting that Pope Francis I, who chose his name from St. Francis of Assissi, the patron saint of animals and the environment, is preparing to publish an encyclical this summer on the effects of climate change on the poor, and the need to protect Earth and its environment.

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'Planetary' Calls For A Global Vision Shift For Earthlings

Wednesday, April 22, 2015

As today is Earth Day, it may be that nothing is more appropriate than watching, here, at 13.7, a preview of the documentary Planetary.

Using footage from NASA, interviews and spectacular imagery from across the planet, the movie calls for a change in perspective — a new way ...

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Einstein's Universe Turns 100

Wednesday, April 15, 2015

One hundred years ago, a 36-year-old Albert Einstein presented the complete formulation of the General Theory of Relativity to the Prussian Academy of Sciences. Across the world, events and conferences will be celebrating what is considered, without hyperbole, the most beautiful of physical theories, marrying mathematics with physical concepts ...

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What The 'God Of The Gaps' Teaches Us About Science

Wednesday, April 08, 2015

"God of the Gaps": When God is invoked to fill in the blanks in scientific knowledge. An old-fashioned and doomed theological approach, but one that is nevertheless very much alive in the minds of many.

In the General Scholium, a sort of epilogue to his monumental Mathematical Principles of Mathematical ...

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Van Gogh's Turbulent Mind Captured Turbulence

Wednesday, April 01, 2015

This week marked Vincent van Gogh's 162nd birthday. The always-illuminating Maria Popova celebrated in her Brainpickings newsletter by bringing back studies linking van Gogh's celebrated 1889 painting The Starry Night -- where light and clouds flow in turbulent swirls on the night sky — with studies of turbulence in ...

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Should You Trust That New Medical Study?

Wednesday, March 25, 2015

News of medical studies fill the headlines and airwaves — often in blatant contradiction. We've all seen it: One week, coffee helps cure cancer; the next, it causes it.

From a consumer's perspective, the situation can be very confusing and potentially damaging — for example, in a case where someone ...

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Take A Shorter Shower — It's World Water Day

Sunday, March 22, 2015

Even though water scarcity is probably among the top of our list of 21st century worries, few people stress about it unless directly lacking a safe source of ample water.

World Water Day — this year landing on Sunday, March 22 — aims to raise awareness, especially among those ...

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Much Rests On The Enhanced Large Hadron Collider

Wednesday, March 18, 2015

Get ready to look at the universe through a new window.

Later this month, the Large Hadron Collider, or LHC, the behemoth particle accelerator operated by the European Organization for Nuclear Research (CERN), will be back in action after a two-year hiatus. The pause was intentional, giving technicians and ...

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Do Fairies Live In The Multiverse?

Wednesday, March 04, 2015

When I became a physicist, my dream was simple, even if ambitious: I wanted to understand nature, to build theories that would make predictions that would eventually be verified by experiments. I would then be like those heroes of physical science — Isaac Newton, Albert Einstein, Antoine Lavoisier, Niels Henrik, ...

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The Man Who Turned Life Into Magic

Wednesday, February 25, 2015

I was shocked and saddened to read Oliver Sacks' New York Times op-ed last Thursday where he told of his terminal liver cancer from a previous, rare ocular melanoma. As of Wednesday evening, there were 808 comments from readers, all deeply touched by Oliver's humanity. He deserves no less.

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Clinging To Timelessness In A Changing Cosmos

Wednesday, February 18, 2015

We humans long for permanence, for some kind of lasting presence. Witness the closing lines of Shakespeare's famous "Sonnet 18":

"So long as men can breathe or eyes can see,
So long lives this, and this gives life to thee."

So much of our perplexity as we face ...

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Should We Be Afraid Of Aliens?

Wednesday, February 11, 2015

In the long list of modern fears, bloodthirsty aliens may not rank near the top. We have more immediate worries, from terrorism and bioengineered (or not) global epidemics to nuclear holocaust and natural disasters.

However, the notion that other intelligences exist out there in the universe is pervasive in popular ...

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Lessons From The Beginning Of Time

Wednesday, February 04, 2015

The news came out last week that, after a painstaking data analysis involving two teams of scientists, the much-hyped detection of gravitational waves from the Big Bang — announced almost a year ago — was indeed a false alarm: The spiral-shaped distortions in the very fabric of space were ...

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Is An Identical Copy Of You, You?

Wednesday, January 28, 2015

In the video below, Dr. Kenneth Hayworth, president and co-founder of the Brain Preservation Foundation, ponders the following possibility: Imagine that it would be possible to make an identical copy of yourself, including your memories and experiences. Is that copy of you, you? Meaning, if someone pointed a gun to ...

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Was 2014 The Hottest Year On Record — Or Not?

Wednesday, January 21, 2015

Since the Jan. 16 release of findings by NASA's Goddard Institute for Space Studies (GISS) indicating that 2014 has been the hottest year on record, naysayers have criticized the report as being exaggerated and distorted.

According to the NASA data collected from more than 3,000 weather stations around ...

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Capturing Changes In The Way We Connect

Wednesday, January 14, 2015

After reading a recent post of mine focusing on whether we should be living our lives, or capturing them, photographer Jacob F. Lucas got in touch. He recently put together a book called Commute Culture that addresses this same topic through pictures.

I decided to find out ...

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As 2015 Begins, Some Ruminations On Science And Life

Wednesday, January 07, 2015

Over the years, I've been collecting thought fragments and sentences that come to me during the day or in the course of my writing books and essays.

Since this is a time of introspection and self-analysis, I wanted to share some of them with the 13.7 readers — along with ...

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