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Ask an Astronaut: NASA Spaceflyers Open Up

For the latest in our "Ask an Expert" series, current NASA astronaut Donald Pettit and former astronaut Jeffrey Hoffman chat about their spaceflight experiences. From brushing your teeth to weightless dreams, the astronauts discuss the many curiosities of living in space.
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'Escape Fire' Exposes Flaws Of American Healthcare

In Escape Fire: The Fight to Rescue American Healthcare", director Matthew Heineman exposes what he sees as flaws in the U.S. healthcare system, such as a doctor who can spend just minutes with her patients to a soldier addicted to painkillers. Colonel Chester 'Trip' Buckenmaier III, of the U.S. Army Medical Corps, describes the military's efforts to swap pain pills for alternative therapies, like acupuncture and yoga.
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Curiosity 2.0? NASA Announces New Mars Rover Plans

It has been an exciting week for planetary scientists, ranging from the discovery of water ice on Mercury to the announcement of a new Mars rover mission in 2020. Jim Green, director of NASA's planetary science division, and scientist Matthew Siegler discuss the latest news.
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Blue Whale Barrel Roll Caught On Camera

Reporting in the journal Biology Letters, Jeremy Goldbogen and colleagues say blue whales perform underwater acrobatics when they're eating: they rotate 360 degrees while they gulp krill. Reaching 90 feet in length, blue whales are the largest animals on the planet. Goldbogen is studying their dining habits to understand what fuels their growth.
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When It Comes To Boxed Wine, The Cooler, The Better

From swill of the wine world to hipster fame, boxed wine is growing in popularity. But research suggests that its major impediment is temperature. When stored in the heat, the box ages faster than the bottle, scientists say.
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Is Another Moon Mission Written In The Stars?

It's been 40 years since NASA launched Apollo 17, its final human mission to the moon. The commander of that mission says he'd love to give up his claim to fame as "the last man on the moon" but concedes that it probably won't happen in his lifetime. And future trips might be run by companies in the private sector.
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World Bank Issues Alarming Climate Report

Countries attending U.N. climate talks were not able to come up with any major agreements on reducing carbon emissions and slowing global warming. This comes after the World Bank issued a report predicting global temperatures could rise by 7.2 degrees Fahrenheit by the end of the century — possibly sooner if current promises to curb emission are not kept. Renee Montagne talks about this with World Bank President Jim Yong Kim.

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