Scientists have answers about the strange green snow that people in the U.S.A have recently spotted that seems to be like green emeralds falling from the sky.

Blooms of colorful algae on glaciers in the Alps, Antarctica, and Greenland.Miguel Medina/AFP/Getty Images; Dr. Matt Davey; Rey Mourot Photos show colorful algae blooms are turning glaciers pink, ...

Snow isn't always white; algae can make it look green, red, or orange, and scientists are trying to understand how and why these colorful patches appear.

We’ve all seen snow turn from white to gray and black, maybe a ruddy brown color when it has been sitting next to a busy road or sidewalk. We’ve seen snow take different shapes and appearances ...

A team of researchers was busy scanning the snow fields of Clements Mountain in Montana's Glacier National Park to find snow algae. Then they saw a slight blush on the mushy snow ahead from about 100 ...

A) Green snow, B) Red snow, C) Snow algae (members of the green algae), which are the main cause of green snow, and D) Parasitic chytrid infecting snow algae. Parasitic chytrids causes host death.

SEATTLE — Researchers and volunteers are working to gather and test samples of algae blooms often referred to as "pink snow" to learn more about its life cycle. In time, that data could be used to ...

Pink snow is shown in this July 2019 photo taken at Beartooth Mountains in Montana within Yellowstone National Park. Jeff Having, University of Minnesota A few “lucky” visitors could catch a glimpse ...

Quick question. What color is snow? If you said white, well, of course, you're right. But here's something you might not know. Sometimes snow can look green or orange or red because patches of snow ...