We rounded up the coolest, biggest and most important space stories of 2013 and asked the editors of Scientific American to vote for their top five. Here they are in our latest episode of the Countdown.

More to explore :

The Top 5 Space Stories of 2012

Scientific American's Top 10 Science Stories of 2013



Host/writer: Sophie Bushwick

Story Advisors: Clara Moskowitz & Michael Moyer

Production Assistant: Josh Krisch

Producer/Editor: Eric R. Olson