a rainbow
There is no "why" because it's possibl to see a rainbow at night, but rare. The reason is that the source of the colors in the rainbow during the day is the sun, whereas the source at night can only be the moon, which is much less bright, so any rainbow at night would be much less noticeable.
a rainbow appears
A rainbow must always be in the opposite direction from you compared to the sun.So if you see a rainbow in the morning, its center would be in a generally westerlydirection from you.
Nothing in particular, mainly because that's not possible. The center of the rainbow always appears in front of you, directly opposite the sun. When you move, the rainbow moves.
When sunlight passes through raindrops, the drops scatter the light which then appears to the onlooker to form a band of colors in the sky - or as we call it, a rainbow.
Her full name appears to be Rainbow Dash.
After it rains outside and it is sunny, you may be able to find a rainbow.
a rainbow
Night rainbow.
The word rainbow is a noun. A rainbow is a multicoloured arch that appears in the sky.
There is no "why" because it's possibl to see a rainbow at night, but rare. The reason is that the source of the colors in the rainbow during the day is the sun, whereas the source at night can only be the moon, which is much less bright, so any rainbow at night would be much less noticeable.
It is a rainbow at night
A "Moonbow"
A rainbow is possible for a very short time before sunrise and a very short time after sunset, but not at a time that you'd actually call "night".
It is called 'Moonbow' (lunar rainbow).
A rainbow appears after the rain as a beautiful natural phenomenon.