Earth Day Apr. 22, 2025

Earth Day

On Earth Day, let"s journey to one of nature"s most stunning displays of geothermal power—Grand Prismatic Spring in Yellowstone National Park, Wyoming. The largest hot spring in the United States, it spans 113 metres across and reaches temperatures of 71°C. This geothermal marvel is fuelled by the immense heat of the massive Yellowstone volcano beneath the surface. Its vivid rings of blue, green, yellow and orange are created by heat-loving microorganisms—called thermophiles—that thrive in the mineral-rich waters.

© Ajith Kumar/Getty Images

palette

Today in History

Where can you find this cute creature?
Apr. 22, 2024Earth Day

More Desktop Wallpapers:

Nov. 6, 2023Lago Pehoé, Torres del Paine National Park, Chile
Black sands in a tropical paradise
Oct. 31, 2024Happy Halloween!
Do pandas enjoy winter?
Oct. 4, 2024Nuit Blanche Toronto
Dec. 29, 2024Borobudur temple, Java, Indonesia
Jul. 26, 2024Summer Olympics begin in Paris
A curious little otter pup
May 1, 2024Lei Day
‘Only one Earth’
A snapshot of Spring
Dec. 23, 2025Reindeer, Lapland, Finland
The lungs of Earth
Aug. 24, 2023Shark Fin Cove, California
Feb. 20, 2024Kinder Scout, Peak District National Park, UK
A labyrinth of luxury
Fly me to the moon
Sep. 20, 2024Ocracoke Lighthouse on Ocracoke Island, North Carolina, USA
Magnified moss
Jul. 13, 2025International Rock Day
Jul. 26, 2025International Day for the Conservation of the Mangrove Ecosystem
Jan. 8, 2024Bernina Pass, Graubünden, Switzerland
Best views tower
A rainbow that’s worth the rainfall
Oct. 25, 2023Grand Staircase-Escalante National Monument, Utah
Mar. 30, 2024Brown-throated three-toed sloth
Aug. 31, 2024Rocks and sand in the Sahara, Algeria
Huddled and hunting
Oct. 15, 2024Great wildebeest migration at Mara River, Kenya
Oct. 12, 2024World Migratory Bird Day