After an Epic 4-Billion Mile Chase, We Finally Landed on a Comet Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email In this November 10, 2014 handout photo illustration provided by the European Space Agency (ESA) the Rosetta probe (L) and Philae lander are pictured above the 67P/Churyumov-Gerasimenko comet. ( ESA / Getty ) Produced by Angus Chen Produced by PRI and WNYC