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 6, 2019A winter wonderland in Northeast China
Apr 18, 2018A crested partridge
Feb 11, 2025Yungang Grottoes, Shanxi, China
Jul 12, 2019The ‘Night of Nights’
Mar 6, 2020Hello, harbinger of spring
Jun 5, 2023World Environment Day
Jan 1, 2019New Year’s Day in the land of the rising sun
Jan 8, 2026Starling murmuration over the ruins of Brightons West Pier, England
Jun 16, 2020In the footsteps of Leopold Bloom
Mar 30, 2026Demoiselle cranes, India
Nov 16, 202250 years of World Heritage Sites
Jul 10, 2024Collared aracari in Costa Rica
Feb 10, 2023Ancient theater of Epidaurus, Greece
Oct 4, 2022World Space Week
Dec 21, 2021Winter solstice
Feb 15, 2026World Whale Day
Mar 18, 2024Elephant Rock, Al-Ula, Saudi Arabia
Jun 17, 2022Grand Teton National Park
Dec 9, 2022Muskoxen in Dovre-Sunndalsfjella National Park, Norway
Aug 29, 2021Notes from an underground lake
Apr 6, 2021On the rebirth of the Olympic Games
Jun 8, 2020A day for the oceans
Sep 7, 2020Take a break! It s Labor Day!
Nov 8, 2022Yi Peng Festival in Chiang Mai, Thailand
Mar 7, 2018Chapel of St. Michel on Lake Serre-Ponçon, Hautes-Alpes, France
Dec 7, 2019Remembering the Arizona
Mar 19, 2022Chicagohenge
Feb 22, 2024Bathing boxes at Brighton Beach, Australia
Oct 20, 2022International Sloth Day
Mar 6, 2024Wahclella Falls, Oregon