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 US, it spans 370 feet across and reaches temperatures of 160°F. This geothermal marvel is fueled 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

Apr 22, 2018Have a ‘beary’ good Earth Day
Apr 22, 2019Meet our fuzzy Earth Day mascot
Apr 22, 202050 years of Earth Day
Apr 22, 2021Gazing down on planet Earth
Apr 22, 2023Earth Day and National Park Week
Apr 22, 2024Earth Day

More Desktop Wallpapers:

Aug 26, 2020Spotted Lake emerges
Nov 27, 2018The fantastic winter fox
Jan 20, 2019It’s Penguin Awareness Day
Apr 17, 2023International Haiku Poetry Day
Nov 24, 2021Chocolate Hills
May 4, 2022Star Wars Day
Aug 14, 2024World Lizard Day
Jul 19, 2020Venice by night
Jul 31, 2019Go climb a tree
May 18, 2019A ‘city’ within Valencia
Oct 6, 2021A valley view at 9,000 feet
Oct 10, 2023Mount Sopris, Colorado
May 11, 2023Henningsvær Stadion, Norway
Nov 18, 2019Swimming with the sea cows
Jan 7, 2022Nazaré Lighthouse
Nov 9, 2018Let’s go foraging
Nov 5, 2024US Election Day
Aug 31, 2019Walk the line
Feb 4, 2025Golden Bridge, Bà Nà Hills, Da Nang, Vietnam
Jul 16, 2025Temple of Philae, Aswan, Egypt
Apr 2, 2021White dunes, blue lagoons
Jan 6, 2019A winter wonderland in Northeast China
Jan 26, 2018Eastern grey kangaroos in Australia’s Kosciuszko National Park
Dec 20, 2021Ministry of Fun Santa School
Sep 19, 2024International Talk Like a Pirate Day
Jan 17, 2025Brown pelican, San Diego, California
Nov 12, 2019Sleep tight, little hedgehog
Feb 18, 2024World Whale Day
Mar 10, 2018Johnston Canyon in Banff National Park, Alberta, Canada
Jun 26, 2019Get amped for Glastonbury