We've put robots on both the moon and mars, but scientists have never tried to soft-land a robot on a comet--until now. In this episode of The Countdown, we cover everything you need to know about the European Space Agency's groundbreaking Rosetta mission.
July 26, 2018 — Jen Schwartz and Kelsey Kennedy
July 20, 2018 — Mark Fischetti
July 4, 2018 — Tim Palmieri
June 28, 2018 — Shelley Sandiford, Lydia Chain and Deboki Chakravarti
June 16, 2018 — Kelsey Kennedy and Tim Palmieri
June 12, 2018 — Kelsey Kennedy