While driving down an East Texas country road I spotted this scene. The autumn trees and the late afternoon sun made these golden bales of hay shine just a little bit more. Fortunately I had my camera with me. (c) James Q. Eddy Jr.

The Four States NPR News Source 2025 Kansas Association of Broadcasters Award Winner 2nd Place for Website in a Medium Market

Donate

Play Live Radio

Next Up:

0:00

0:00 0:00

Available On Air Stations

Hear KRPS Weekday Morning & Evening Newscasts in the NPR App

Uncovering the mystery of how algae makes snow green, red or orange

By Nell Greenfieldboyce

Published December 28, 2025 at 7:13 AM CST

Facebook
Twitter
LinkedIn
Email

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.

Facebook
Twitter
LinkedIn
Email

Nell Greenfieldboyce

Nell Greenfieldboyce is a NPR science correspondent.