Progress

The Stars Are Also Fire, 10, The Mother of the Moon.

Tychopolis, the University of Luna and an L-5 are being built.

The Beynacs and other couples have the first Lunarian children.

The Beynacs' children begin to devise the Elvish-sounding Lunarian language:

"ARVEN ARDEA NIO LULLUI PEYAR -" (p. 132)

Ice is gathered from the asteroids.

Edmond Beynac thinks that there was once a large body with a nickel-iron core in the region of the Asteroid Belt.

Antimatter-powered spaceships reach the orbit of Pluto in three weeks.

Next Fireball will launch interstellar probes.

There is prosperity and conflict on different parts of Earth.