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:

May 23, 2020Bask in the glow—It s World Turtle Day
Nov 3, 2024International Day for Biosphere Reserves
Dec 3, 2020A Carpathian Christmas celebration
Jan 28, 2021Avatars of the Wolf Moon
Jan 3, 2026J.R.R. Tolkien Day
Dec 30, 2023Daiichi Tadami River Bridge, Fukushima, Japan
Mar 21, 2021A glimpse of the Blue Forest
May 20, 2021Happy Bee Day to you
Nov 29, 2023Rockefeller Center Christmas tree lighting
Jun 23, 2022Stari Most in Mostar, Bosnia and Herzegovina
Sep 2, 2023National Hummingbird Day
Jul 25, 2022National Merry-Go-Round Day
Mar 17, 2019St. Patrick’s Day in Ireland
Oct 24, 2019Bridge of Hillsborough County
Jan 14, 2021Summer huts in winter
Jan 6, 2026Nuuk, Greenland
Oct 27, 2024Polar Bear Week
Jul 7, 2025Northern gannets, Shetland Islands, Scotland
May 1, 2023Asian American and Pacific Islander Heritage Month
Jan 20, 2026Penguin Awareness Day
Apr 10, 2023Siblings Day
Nov 10, 2018The Badlands celebrates a milestone
Apr 23, 2020Duck, duck. duck, duck, duck...
Jul 24, 2022Amelia Earhart
Jan 15, 2020Harvest season begins
Jun 16, 2024Happy Fathers Day!
Oct 18, 2020Sitka shines on Alaska Day
May 13, 2024Fish River Canyon, Namibia
Aug 3, 2025Blooming sunflowers
Jan 13, 2020Welcome to California