The coolant leak from the Soyuz docked with the ISS is said t o be significant and Wes and Shawn talk about what it means and what it could mean for astronauts on board. China's methan powered rocket failed to launch. There's been a lot of solar activity this week. Plus, updates on the occultation of Mars, the Geminid meteor shower and what was happening 50 years ago on the Moon.
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