Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Epimetheus anogara munharaunda imwe cheteyo yomwedzi Janus. Vazivi venyeredzi vakafungidzira kuti kwaingova nomuviri mumwe chete mumugwagwa iwoyo (vasingadaviri kuti mwedzi miviri yaigona kugoverana migwagwa inodokuva yakafanana pasina kurwisana), uye nokudaro vakava nechinetso chokugadza mavara avo omugwagwa. Kucherechedza kwacho kwaiva kwemifananidzo uye kwakanga kwakaparadzana zvikuru munguva, zvokuti nepo kuvapo kwezvinhu zviviri kwakanga kusiri pachena, kucherekedza kwacho kwakanga kwakaoma kuyananisa nenzvimbo inonzwisisika. Audouin Dollfus akacherechedza mwedzi musi wa15 December 1966, uyo waakakaronga kuti atumidzwe kuti "Janus". Musi waDecember 18, Richard Walker akaona zvakafanana izvo zvino zvinonzi ndizvo zvakawana Epimetheus. Zvisinei, panguva iyoyo, zvaifungidzirwa kuti kwaingova nemwedzi mumwe chete, uyo wainzi "Janus", mumugwagwa wakapiwa. Makore gumi nemaviri gare gare, muna October 1978, Stephen M. Larson naJohn W. Fountain vakaziva kuti kucherekedza kwa1966 kwakatsanangurwa zvakanakisisa nezvinhu zviviri zvakasiyana (Janus naEpimetheus) vachigoverana migwagwa yakafanana zvikuru. Ikoku kwakasimbiswa muna 1980 neVoyager 1, uye nokudaro Larson naFountain vanogoverana zviri pamutemo kuwanwa kwaEpimetheus naWalker. Mwedzi uyo zvimwe waiva Epimetheus wakaoneka mumifananidzo miviri yePioneer 11 uye wakadomwa kuti 1979S1, kunyange zvazvo pasina chokwadi nokuti mifananidzo miviri yacho yakanga isina kukwana kubvumira kutenderera kunovimbika kuverengwa. Epimetheus akagamuchira zita rayo muna 1983. Zita rokuti Janus rakagamuchirwa neIAU panguva imwe cheteyo, kunyange zvazvo zita racho rakanga richishandiswa zvisina kurongwa sezvo Dollfus akarikumbira nokukurumidza pashure pokuwanwa kwacho muna 1966.  Mubvunzo: Chii chakaitika panguva imwe cheteyo nokugadzwa kwaEpimetheus?
Zita rokuti Janus rakagamuchirwa neIAU