Marcelo Gleiser

We named our science and culture commentary 13.7: Cosmos & Culture when it launched nearly nine years ago.

At the time, the universe was believed to be 13.7 billion years old. But according to data released from the Planck satellite since, it took a bit longer: 13.8 billion years from the Big Bang to this blog.

Here's how it (the commentary, not the Big Bang) came to be:

There is a paradox with living as a human nowadays.

A 2014 article from the United Nations states that about 54 percent of the human population lives in urban areas (more by now), a proportion that is projected to increase to 66 percent by 2050. By 2045, the report says, more than six billion people will crowd cities.

If movie critics have kept you from watching A Wrinkle in Time, take a second look.

This is not one of your typical kids' movies that also caters to the adults that take them to the movie theater. Those are fun, of course, especially for the adults, even if many puns and jokes fly over the heads of most of the youngsters in the room. Think The Lego Movie.

"Hauntingly beautiful." "Terrifying and seductive." "A bit too crazy for me."

These are some viewer reactions after watching Alex Garland's Annihilation, a fantasy sci-fi drama that leaves you in a weird state for days.

Unless you do live in a galaxy far, far away, you know episode VIII of the Star Wars saga opened last week to much anticipation.

I took my family on Saturday afternoon, making sure I didn't talk to anyone that had seen it already.

[Spoiler Alert: If you haven't watched the movie you may want to wait to read this review until you do.]

Two years ago yesterday, Dec. 12, nearly 200 countries came to a consensus that greenhouse emissions — mostly caused by the burning of fossil fuels — had to be drastically cut if we were to halt the planetary-changing consequences of a choking atmosphere.

For this post-Thanksgiving week, I'd like to suggest a remarkable video produced over two decades by NASA scientists.

Satellites monitored populations of plant life on land and oceans, mapping variations of green regions of vegetation and snow cover on the North and South Poles. As seasons pass, we witness a rhythmic dance between white and green, as if the planet itself were breathing.

Living in cities or suburbs, amid the race of everyday routine, we have little time to care about what goes on at the planetary level — or about the uniqueness of our planet.

As Europe was being torn apart in the early 17th century by conflicts between Catholics and Protestants — that would lead to the devastating Thirty Years War in 1618 — the German astronomer Johannes Kepler wrote:

"When the storm rages and the shipwreck of the state threatens, we can do nothing more worthy than to sink the anchor of our peaceful studies into the ground of eternity."

The Sign, a documentary directed, shot and produced by Josh Turnbow and Robert Dvoran and set to air Thursday, addresses whether the end of days is coming this month, as some biblical literalists predict.

The "sign" in the title refers to an alignment in the sky peaking on Sept. 23, whereby Mercury, Venus, Mars, and Jupiter will be around the constellations of Virgo and Leo, together with the sun and moon. Sept. 23 is when Jupiter leaves Virgo after being there for a while.

America seems to be a magnet for devastating hurricanes these days.

This year, Harvey came out strong with its horrific toll on parts of Texas and Louisiana. Now Irma, downgraded slightly Friday morning to a Category 4 storm from its most recent days as a Category 5, has left destruction in its wake as it plows through the Caribbean and Cuba — and is on path to hit Florida Sunday morning.

Hurricane Harvey is a devastating reminder of how helpless we are when facing nature's human-dwarfing powers.

We dig holes and barricades, build dams and create ingenious systems of canals and levees. We try to pull the brakes on natural forces, or at least tame them. These measures protect us, and we surely would be worse off without them. We have come a long way since our cave dwellings.

In the current issue of the New York Review of Books, David Kaiser and Lee Wasserman, the president and the director of the Rockefeller Family Fund (RFF), respectively, explain why the organization decided to divest its holdings on fossil fuel companies.

Although the divesting decision is broad-ranging, they single out ExxonMobil for its "morally reprehensible conduct."

There's no question that running changes your heart.

The issue is whether these changes are good or bad. I don't mean the occasional 3 miles once or twice a week, although even this minimal amount of exercise seems to have positive health benefits.

Right when Steve Spielberg's rendition of Roald Dahl's classic The BFG hit the screens here on Earth without the expected impact, NASA's probe Juno, in a spectacular performance, entered orbit around monstrous, stormy Jupiter — our solar system's "unfriendly" gi

The singer David Bowie, one of the most creative performers in rock 'n' roll history, died of cancer at age 69 on Sunday — two days after releasing a new album.

It was a busy year for science, with remarkable discoveries on all fronts. I have compiled a brief and incomplete list, biased toward space science and physics, with links to more details. Here it goes:

"History will remember this day," U.N. Secretary-General Ban Ki-moon said on Saturday, after almost 200 countries adopted the first global treaty to curb man-made global warming. "The Paris agreement on climate change is a monumental success for the planet and its people."

President Obama agreed: "[The climate agreement] offers the best chance to save the one planet we have."