The goal is to rescue the astronauts which are stranded on the lunar surface (rather platforms) by maneuvering your lunar vessel onto one of three platforms while dodging the asteroids.
A program to search for eclipses (lunar, solar, total, annular and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in four lunar calendars.
