Tue. 12/14 - Sad Keanu & A Sleeping Bag to Save Astronauts' Eyeballs From Being Squashed

When did we first start sending holiday cards and will the tradition ever end? Plus, the health risks for humans in space and a high-tech sleeping bag that could prevent astronauts’ vision from deteriorating. And, Keanu Reeves explains what was going on in the infamous Sad Keanu photo.
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Links:

A Brief History of the Holiday Card (JSTOR Daily)

Millennials are embracing the tradition of holiday cards (Washington Post)

Christmas: A Candid History by Bruce David Forbes

Halloween: The History of America's Darkest Holiday by David J. Skal

NASA scientists consider the health risks of space travel (Space.com)

NASA's new sleeping bags could prevent eyeball 'squashing' on the ISS (Engadget)

Space sleeping bag to solve astronauts' squashed eyeball disorder (BBC)

Study Investigates How Men and Women Adapt Differently to Spaceflight (NASA, 2011)

Keanu Reeves finally explains "Sad Keanu" to Stephen Colbert (A/V Club)

Keanu Reeves, Matt Kindt, and Ron Garney talk about 'BRZRKR', the top selling debut comic in 30 years (Mashable)
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