The Countdown is a biweekly video podcast highlighting the top space news stories from the past two weeks. In this episode: A Six-Tailed Asteroid, India's Mars Mission, Earth-like Exoplanets, Mapping the Russian Meteor's Path, and Lunar Topography.
April 19, 2018 — bioGraphic
April 16, 2018 — Kelsey Kennedy
March 16, 2018 — Nature Video