Astronomy Day and National Public Lands Day Sep 27, 2025

When the calendar lines up just right, you get a rare double feature: National Public Lands Day and Astronomy Day. It"s a chance to explore the landscapes that ground us and the skies that inspire us—all within 24 hours.

© Austin Trigg/TANDEM Stills + Motion

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Today in History

Sep 27, 2018High seas commerce
Sep 27, 2019Ancient storage in the Grand Canyon
Sep 27, 2020Take me to the river
Sep 27, 2021Sharp-dressed bug
Sep 27, 2022Upper Geyser Basin, Yellowstone National Park
Sep 27, 2023Via Krupp, Capri, Italy
Sep 27, 2024Basilica of Santa Maria della Salute, Venice, Italy

More Desktop Wallpapers:

Jul 7, 2021Back on the rise
Apr 11, 2019Spring blooms in the Netherlands
Feb 12, 2021The cycle begins anew
Jun 21, 2023Summer solstice
Oct 1, 2020A lunar lantern celebration
Dec 24, 2022Christmas Eve
Jun 3, 2023National Trails Day
Apr 17, 2022Easter
Mar 31, 2023Steyr River, Austria
Jun 25, 2020Hoisting a flag for seafarers
Feb 7, 2019A wonder in winter
Nov 17, 2022National Take a Hike Day
Apr 7, 2020Once in a pink moon
Jul 23, 2023Nuwara Eliya, Sri Lanka
May 14, 2025Porto Flavia, Sardinia, Italy
Aug 14, 2021When Death Valley blew its top
Sep 21, 2019 The Wall for Peace
Jun 19, 2018Dancers perform ‘Revelations’
Mar 21, 2018Celebrating the International Day of Forests
Mar 22, 2021Honoring some real heroes of World War II
Jun 20, 2020 Beyond Walls for World Refugee Day
Jul 20, 2020Earthrise on Moon Day
Feb 5, 2023Monarch butterflies, Pismo Beach, California
Apr 30, 2018Swinging into International Jazz Day
May 25, 2019Traveling warblers
May 19, 2019High trekking season in Upper Mustang
Jan 25, 2026Burns Night in Scotland
Sep 24, 2018Mooncake time
Nov 1, 2018Celebrating the Day of the Dead
Apr 14, 2018It’s National Dolphin Day!