Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...

This image images to show Altocumulus clouds taken from an airplane at sunset. Before this image was attached to the wildfire claim, it was shared with the following caption on Reddit ...

Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...

Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) Even though the entire cloud collectively is quite heavy, it is a ...

Just because something floats doesn't mean it is weightless. A great example is when oil is poured onto water. The oil will float on top of the water, but that doesn't mean it has no weight.

Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...

Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...

Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...

Just because something floats doesn't mean it is weightless. A great example is when oil is poured onto water. The oil will float on top of the water, but that doesn't mean it has no weight.

Cirrus clouds are much lighter as they contain ice crystals. Cumulus clouds reflect the warm colors of sunset in the sky over Santa Fe, New Mexico. (Photo by Robert Alexander/Getty Images) ...