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:

Jan 15, 2018Dr. Martin Luther King, Jr. Memorial in Washington, DC
Feb 19, 2022Mount Logan in Yukon, Canada
Jul 26, 2019The party’s just starting
May 13, 2019In praise of bogs, swamps, and marshes
Apr 3, 2025National Find a Rainbow Day
Oct 12, 2020Indigenous Peoples Day
Jan 21, 2026Squirrel Appreciation Day
Apr 5, 2026Easter Sunday
Jun 25, 2023Al-Khazneh in Petra, Jordan
Dec 14, 2020I see one!
Jul 26, 2020A path to access
Jan 29, 2025Chinese New Year
Oct 18, 2024Autumn in Central Park, New York
Dec 11, 2024International Mountain Day
Feb 22, 2025Gateway Arch in St. Louis, Missouri
Sep 29, 2024West Cornwall Covered Bridge, Connecticut
Oct 1, 2021What s better than a smile?
Oct 3, 2025Glen Brittle, Isle of Skye, Scotland
Mar 25, 2019Greece celebrates its independence
May 3, 2025Happy International Astronomy Day!
Sep 15, 2024National Hispanic Heritage Month
May 28, 2018Honoring the fallen
Oct 15, 2023European hedgehog
Oct 28, 2019A night on the (ghost) town
May 27, 2020Clouds over the River of Grass
Apr 19, 2018Craig Goch Dam in the Elan Valley of Wales
Jul 13, 2019Batten down the hatches
Jan 11, 2022Porcupine
Apr 18, 2025International Day for Monuments and Sites
Jul 27, 2026Tiffany Dome, Chicago Cultural Center, Illinois