Moon

Moon

The Earth's only natural satellite. The moon has a cold, dry orb covered with many lunar craters and strewn with rocks and dust. The moon has no atmosphere. But recent lunar missions have found plenty frozen water on the moon.

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Moon

Mare

Astronomy; Moon

Name given to the low, dark plains composed of basalt on the Moon. From the Latin word for 'sea', so-called due to their large landmass. These basalt deposits were left by the eruptions of ...

Meridian

Astronomy; Moon

An imaginary line that passes directly north and south through an observer or specified location on Earth. A plane extended from this line into space passes through the zenith (point above the ...

Moon

Astronomy; Moon

The natural satellite of the Earth or the natural satellite of any planet.

Zenith

Astronomy; Moon

The imaginary point directly above an observer on Earth (opposite of nadir).

Half Moon

Astronomy; Moon

The phase of the Moon also known as the quarter moon, either first quarter moon, or last quarter moon.

Intercalation

Astronomy; Moon

A method of synchronising a lunar calendar with a solar year by adding extra days or months. Extra days are known as intercalary days and extra months are known as intercalary. Intercalation is the ...

Latitude

Astronomy; Moon

Lines of measurement around a planet or the Moon, parallel to its equator. Measured in degrees, with the equator being 0 degrees and the poles 90 degrees north or south.