Moon FAQs:

Q: Is Moon Earth's only permanent natural satellite?

A: Yes.

Q: Is Moon a differentiated body: it has a geochemically distinct crust?

A: Yes, and mantle, and core.

Q: Is Moon derived from moone?

A: Yes, and which developed from mone , which is derived from Old English mōna , which ultimately stems from Proto-Germanic *mǣnōn, like all Germanic language cognates.

Q: Was Moon Luna 10?

A: Yes, and both in 1966.

Q: Is Moon visible for any location?

A: Yes.

Q: Is Moon only one-tenth as bright?

A: Yes, and rather than half as bright, as at full moon.

Q: Is Moon both giant spherical rocks?

A: Yes, and that the latter reflected the light of the former.

Q: Was Moon merely a reflection of the Sun?

A: Yes, and Jing Fang noted the sphericity of the Moon.

Q: Is Moon visible for two weeks every 27?

A: Yes.

Q: Was Moon often personified as a lunar deity in mythology and religion?

A: Yes.

Q: Is Moon lunar?

A: Yes, and derived from the Latin Luna.

Q: Is Moon highest during winter?

A: Yes.

Q: Is Moon the second-densest satellite in the Solar System?

A: Yes, after Io.

Q: Is Moon small?

A: Yes, and with a radius of about 350 km or less, around 20% of the radius of the Moon.

Q: Is Moon continuously blocking our view of a half-degree-wide circular area of the sky?

A: Yes, and the related phenomenon of occultation occurs when a bright star or planet passes behind the Moon and is occulted: hidden from view.

Q: Is Moon seen?

A: Yes, and allowing a total of about 59% of its surface to be seen from Earth over time.

Q: Was Moon thought to come from Theia?

A: Yes, and this observation was unexpected.

Q: Is Moon in synchronous rotation: it rotates about its axis in about the same time it takes to orbit Earth?

A: Yes.

Q: Is Moon roughly the same as that of the Sun?

A: Yes, and with both being viewed at close to one-half a degree wide.

Q: Was Moon Luna 1?

A: Yes, the first human-made object to impact the lunar surface was Luna 2, and the first photographs of the normally occluded far side of the Moon were made by Luna 3, all in 1959.

Q: Is Moon thought to have formed about 4.5 billion years ago?

A: Yes, and not long after Earth.

Q: Is Moon comparatively close to Earth?

A: Yes, and occultations of individual stars are not visible everywhere on the planet, nor at the same time.

Q: Is Moon orbiting the Earth in the same direction of the Earth's rotation, the high tides occur about every 12 hours and 25 minutes?

A: Yes, the 25 minutes is due to the Moon's time to orbit the Earth.

Q: Was Moon personified as a deity or other supernatural phenomenon?

A: Yes, and astrological views of the Moon continue to be propagated today.

Q: Is Moon an important factor in rendering lunar habitation as a cost-effective plan?

A: Yes, the alternative of transporting water from Earth would be prohibitively expensive.

Q: Is Moon decreasing?

A: Yes.

Q: Is Moon nevertheless still considered a planet–satellite system?

A: Yes, and rather than a double planet, because their barycentre, the common centre of mass, is located 1,700 km beneath Earth's surface.

Q: Is Moon seen through thin clouds?

A: Yes.

Q: Is Moon increasing?

A: Yes, and the Earth's spin is slowing in reaction.

Q: Is Moon exceptionally large relative to Earth: a quarter its diameter and 1/81 its mass?

A: Yes.

Q: Is Moon perceived as a bright object?

A: Yes.

Q: Is Moon all in a straight line?

A: Yes, Solar eclipses occur at new moon, when the Moon is between the Sun and Earth.

Q: Is Moon called terrae?

A: Yes, or more commonly highlands, because they are higher than most maria.

Q: Is Moon represented as male and female, respectively?

A: Yes, The crescent shape from an early time was used as a symbol representing the Moon.

Q: Is Moon in synchronous rotation with Earth?

A: Yes, and always showing the same face, with its near side marked by dark volcanic maria that fill the spaces between the bright ancient crustal highlands and the prominent impact craters.