UNIVERSE
SURVEY OF THE PLANETS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
waning
|
|
waxing
|
|
gibbous
|
|
crescent
|
Detailed explanation-1: -What happens during a waning moon? During a waning moon, the illuminated side of the moon is getting smaller. This is because less and less of the “day side” of the moon is observable from Earth.
Detailed explanation-2: -Between the new and full Moon, the amount of Moon we see grows-or waxes from its right side toward its left side. As it passes the full Moon stage, the amount of illumination decreases-or wanes-from right to left.
Detailed explanation-3: -The Moon is shrinking as its interior cools, getting more than about 150 feet (50 meters) skinnier over the last several hundred million years. Just as a grape wrinkles as it shrinks down to a raisin, the Moon gets wrinkles as it shrinks.
Detailed explanation-4: -During the second half of the lunar month, the Moon grows thinner each night. We call this waning. Its shape is still gibbous at this point, but grows a little thinner each night.