Earth’s companion has allowed astronomers to define lunar cycles, navigate without technology, and understand celestial ...

E. W. Brown discusses possible causes for the want of agreement between the moon's observed motion and theory. In his second section Prof. Brown gives a summary of these outstanding discordances ...

THE apparent motions of the sun, the moon and the planets during the course of a year can be represented very conveniently by plotting on a single sheet of paper the right ascension of these ...

Planetary scientists say the visibility of the moon and sun during the daytime, doesn't prove a flat Earth – it is in fact a reflection of the motion of the sun, moon and Earth in space ...

The moon's orbit around Earth appears so regular that civilizations have based the month on lunar motion for thousands of years. However, the moon is actually creeping slowly away from Earth.