Carl A. Wirtanen 64P/Swift–Gehrels 140 Siwa Flyby (spaceflight) 732 Tjilaki Mars Geyser Hopper List of minor planets and comets visited by spacecraft Philae (spacecraft) C/2012 E2 (SWAN) Comet NEOWISE Discovery Program Rosetta (spacecraft) 2017 YE5 List of numbered comets List of Solar System probes 276P/Vorobjov Meanings of minor planet names: 13001–14000