Physical Characteristics
Janus is extensively cratered with several craters larger than 30 km but few linear features. The Janian surface appears to be older than Prometheus's but younger than Pandora's. From its very low density and relatively high albedo, it seems likely that Janus is a very porous and icy rubble pile. The moon is also highly non-spherical.
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“... the physical and domestic education of daughters should occupy the principal attention of mothers, in childhood: and the stimulation of the intellect should be very much reduced.”
—Catherine E. Beecher (1800–1878)