earthly adj.

This [sc. Mare Fecunditatis] is the only region in the moon that produces human creatures; the inhabitants of every other country in that planet being imported from the earth. The ladies of this place are not subject to the pains of uterine gestation, and child-birth, like earthly ladies. They are oviparous; and sit upon their eggs, with very short intervals, for three months.

An earthly man if conveyed to the sun would weigh 20,000 tons.

The same reason…will make the forms of the Martian animal kingdom laxer and flimsier…than earthly types.

Is Pandorina the child of earthly parents?… I came to earth in a meteor.

Jim had never heard a Martian speak an Earthly tongue before.

Of greater long-term concern is the possibility of contaminating other planets with earthly microbes riding along on poorly handled space probes.