Saturday February 04, 2017

Astronaut twins, a Human-Pig Chimera and the Science of Torture

Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station. January 19, 2015.

Expedition 45/46 Commander, Astronaut Scott Kelly along with his brother, former Astronaut Mark Kelly speak to news media outlets about Scott Kelly's 1-year mission aboard the International Space Station. January 19, 2015. (NASA/Robert Markowitz)

Listen to Full Episode 54:00

Plus ancient cave engravings, metallic hydrogen and more. 

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