690,106 articles

FRIDAY 16. MARCH, 2018


Chris Hadfield, Nicole Stott, Jerry Linenger, Mike Massimino, Jane Root & Arif Nurmohamed Discuss National Geographic's "One Strange Rock"
"There really is no place like home. National Geographic, acclaimed filmmaker Darren Aronofsky and award-winning producer Jane Root join forces on an epic, cinematic event series that will redefine natural history filmmaking. Hosted by Will Smith "One Strange Rock" promises to be a mind-bending, thrilling journey that explores the fragility and wonder of planet Earth, one of the most peculiar, unique places in the entire universe. It’s the extraordinary story of why life as we know it exists on Earth, brought into perspective by the only people to have left it behind – astronauts. "One Strange Rock" guides viewers through our vulnerable, tiny speck of a planet among the vast, harsh cosmic arena, revealing the magical twists of fate that have allowed life to emerge, survive and thrive only on Earth.

Among geologists who study powerful earthquakes and volcanoes, there is a mystery: as one of Earth's tectonic plates slides beneath another in a subduction zone, water is squeezed from certain minerals, lubricating earthquakes and fueling volcanoes in hot spots like the Pacific Ocean "Ring of Fire." But equations that predict where the forces of subduction wring water from stone consistently point to locations far from the site of actual cataclysms.

Lithium-metal batteries—which can hold up to 10 times more charge than the lithium-ion batteries that currently power our phones, laptops and cars—haven't been commercialized because of a fatal flaw: as these batteries charge and discharge, lithium is deposited unevenly on the electrodes. This buildup cuts the lives of these batteries too short to make them viable, and more importantly, can cause the batteries to short-circuit and catch fire.

Like an island nation, the nucleus of a cell has a transportation problem. Evolution has enclosed it with a double membrane, the nuclear envelope, which protects DNA but also cuts it off from the rest of the cell. Nature's solution is a massive—by molecular standards—cylindrical configuration known as the nuclear pore complex, through which imports and exports travel, connecting the bulk of the cell with its headquarters.