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october 2018

Geomedia: Film: 'First Man' Navigates Neil Armstrong's Journey Between Two Worlds

First Man” is a vivid depiction of Neil Armstrong’s life during NASA’s ambitious and terrifying program to reach the moon. The film uses exquisite cinematography to portray the crowning achievement of the space race — Armstrong becoming the first human to walk on the moon on July 20, 1969. Directed by Damien Chazelle, who won an Academy Award for his direction of “La La Land,” the film navigates a fine line among the triumphs and tragedies of the Gemini and Apollo missions, while also telling the story of the home lives of the astronauts and their families. The dynamics in this human drama cannot be solely explained by physics.

12 Oct 2018

Surfactants slow oceanic carbon dioxide uptake

The oceans are the largest long-term carbon sink on Earth, absorbing about a quarter of all anthropogenic carbon dioxide emissions. The rate of exchange of carbon dioxide between the oceans and the atmosphere is thought to be primarily controlled by wind-driven turbulence at the sea surface. More turbulence leads to increasing gas exchange and higher rates of carbon uptake by the ocean. 

12 Oct 2018

Benchmarks: October 11, 1899: Second Boer War begins, fueled by discovery of gold

The 1886 discovery of gold on a farm in the Witwatersrand region of southern Africa drove the growth of Johannesburg, and gold mining has aided the South African economy for more than a century since. But gold, and diamonds, also fueled the Second Boer War, one of the most destructive armed conflicts in Africa’s history. The war resulted in the deaths of nearly 100,000 people, including tens of thousands of Boer women and children who died in British concentration camps. The consequences of the war, including gold mining’s lasting environmental legacy, and the rise of Afrikaner nationalism that reinforced apartheid, are still felt today.

11 Oct 2018

Pluto's surprising dunes

Images and data sent back by NASA’s New Horizons spacecraft during its flyby mission to Pluto (and beyond) show a series of regularly spaced linear ridges sandwiched between a mountain range and Sputnik Planitia, a vast plain of nitrogen, carbon monoxide and methane ice. “When we first saw the New Horizons images, we thought instantly that these were dunes, but it was really surprising because we know there is not much of an atmosphere [on Pluto],” said Jani Radebaugh, a planetary scientist at Brigham Young University and co-author of a study in Science announcing the findings, in a statement.

10 Oct 2018

Where will the San Andreas Fault rupture next?

In 1906, the San Andreas Fault Zone ruptured, and the shaking that followed brought the city of San Francisco to its knees. Buildings toppled and fires raged and, in the end, more than 3,000 people died as a result. Since then, Californians have often wondered aloud when and where the next “Big One” will strike. Geologists do not know the answers, but recent research has offered a new clue: Field mapping of the San Andreas’ southernmost reaches, near the Salton Sea, reveals a type of fault structure that researchers think may be just right for triggering a big earthquake.

08 Oct 2018

Earth's first footprints

As far as we know, life originated on Earth about 3.5 billion years ago, and for roughly the first 3 billion years of that history all life was microscopic. Then, during the Ediacaran Period from 635 million to 541 million years ago, the first organisms visible to the naked eye emerged. Although many members of this group, called the Ediacara biota, would have looked alien to us, some nonetheless had features we might find familiar. And according to a new study, it was Ediacaran creatures that left behind Earth’s oldest-known footprints.

05 Oct 2018

Travels in Geology: Roof of the Rockies: Trail Ridge Road

Often dubbed the Highway to the Sky, 3,713-meter-high Trail Ridge Road is the signature scenic drive and sole route across Colorado’s Rocky Mountain National Park. The winding ribbon of hairpin bends offers numerous vistas of soaring, snow-capped peaks, alpine tundra, abundant wildlife, and the colorful carpets of tiny wildflowers it hosts for a few weeks each summer after its dramatic opening.
04 Oct 2018

Getting There And Getting Around Rocky Mountain National Park

Denver International Airport (DEN) is the best arrival point for exploring Rocky Mountain National Park (RMNP), and a car is the most convenient way to see Trail Ridge Road and the park’s many other attractions. If you fly in, you can rent a vehicle at the airport and drive to Estes Park, the eastern gateway town, which is roughly 1.5 hours from the airport, or to Grand Lake at the west end of Trail Ridge, about a three-hour drive.

04 Oct 2018

Methane emissions offset some blue carbon burial benefits

Wetlands are prolific sinks for atmospheric carbon. They pull carbon dioxide out of the air and sequester the carbon in plants, soils and sediments. But there’s a catch: Wetlands also emit methane, an even more potent, albeit far less abundant, greenhouse gas than carbon dioxide. Two new studies, one measuring methane emissions from a rehabilitated freshwater peatland in California and the other looking at emissions from tropical mangrove forests in Australia, are revealing that these so-called “blue carbon” sinks may emit much more methane than previously thought.

03 Oct 2018

Dry rivers secretly star in carbon cycle

In arid environments, some seasonal rivers and streams spend more time as dry riverbeds than they do as flowing waterways. A new study is giving scientists a clearer understanding of how these intermittently dry streambeds contribute to the global carbon cycle.

02 Oct 2018

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