Crossword clues for Once in ___ moon. 5 letters:MOONSMars has twoMOONSTill now some nine ___ wasted.—Othello.MOONSPeriods of timeMOONSSome satellitesMOONSTelescopist's sightingsMOONSResponds to "Bottoms up!"?MOONSThey're usually invisible when they're newMOONSGanymede and EuropaMOONSDaydreamsMOONSPluto quintetMOONSEuropa and CallistoMOONSMercury's lackMOONSPlanets' natural satellitesMOONSPhoebe and Rhea, to SaturnMOONSOrbiters of orbitersMOONSStares wistfully into spaceMOONSPlanet orbitersMOONSJupiter's Io and CallistoMOONSButts out?MOONSNew and blueMOONSMany of Uranus's are named after Shakespearean charactersMOONSTitania and Oberon, e.g.MOONSGazes dreamilyMOONSNatural satellitesMOONSThey circle SaturnMOONSAstronomer's sightingsMOONSCheeky displays?MOONSTurns the other cheeks?MOONSDeimos and Phobos, to MarsMOONSGanymede and Lysithea, to JupiterMOONSOffers some buns?MOONSIo and CallistoMOONSIndulges in reverieMOONSPhobos and Deimos, e.g.MOONSLets have a seat?MOONSMany of them make a long timeMOONSPlanetary orbitersMOONSSatellitesMOONSStares absent-mindedlyMOONSBrings up the rear?MOONSMartian pairMOONSSome Lucky Charms marshmallow shapesMOONSLooks longinglyMOONSPlanetary satellitesMOONSMercury and Venus lack themMOONSMars pairMOONSPlanet circlersMOONSMars' twosomeMOONSSaturn's 31MOONSMonths.