From the brains behind brains on, this is the moment of um.

Answering those questions that make you go. I'm Rosie DuPont.

When was the last time you looked at the moon?

It's like your nose, it's always there, but we don't always think about it.

On most nights without too many clouds you can go outside and find the moon

hanging high in the sky. Sometimes it's round and full, sometimes it's just a

tiny sliver, but the shape isn't the only thing that's different about the moon.

Hi, my name is Arthudo from Tucson, Arizona,

and my question is, why does the moon change color sometimes?

The moon actually doesn't change color. It looks like it

changes color because the Earth's atmosphere. My name is Sarah Compruid and I

teach astronomy here at the Bell Museum. So the moon can appear to change color

based on a few different things with the Earth's atmosphere. During a total

lunar eclipse, for instance, you often hear it being referred to as the blood moon, and it turns that kind of reddish,

orangeish color. That happens because as the light passes through the Earth's atmosphere,

the red light kind of gets bent and shines on the moon.

In that case, if there's more pollution, either natural or man-made pollution in the Earth's

atmosphere, the deeper red it will turn. If we're looking at the moon on the horizon and it kind of

has this nice golden orange color and then later in the evening we see it nice and high

overhead and it's more white those colors change based on how much of the Earth's

atmosphere the light reflected off moon has to pass through. It has passed through more

atmosphere on the horizon and again that red light is bending a little bit more to give that

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