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:

Apr 29, 2020Spring comes to the Palouse
Jul 1, 2018Let the games begin
Nov 25, 2020A dying breed of tree thrives in an American park
Feb 24, 2024Almond trees in full bloom, California
Dec 27, 2021Snow buntings take flight
Feb 4, 2018Male kori bustard, Maasai Mara National Reserve, Kenya
Apr 15, 2023World Art Day
Oct 30, 2019Cross this bridge if you dare
Feb 20, 2023Presidents Day
Apr 30, 2024Cheetah in Ngorongoro Conservation Area, Tanzania
Feb 11, 2023Milky Way over Zabriskie Point, California
Mar 27, 2018Macro photograph of a migrant hawker dragonfly
Dec 22, 2022Galeries Lafayette, Paris
Dec 9, 2021Glowworm caves in Australia
Oct 17, 2021A walk among the giants
Dec 11, 2022Jasper National Park, Alberta, Canada
Oct 1, 2021What s better than a smile?
Aug 6, 2025Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii
Jun 4, 2021Islands that turned the tide
Sep 10, 2020Hidden beauty in Thailand
Sep 27, 2019Ancient storage in the Grand Canyon
Sep 13, 2025Point Reyes National Seashore in California
Apr 3, 2024Find a Rainbow Day
Mar 15, 2018The Colosseum of Rome, Italy
May 28, 2018Honoring the fallen
Feb 25, 2021Trevi in bloom
Apr 24, 2023Old underground cellar, Bavaria, Germany
Mar 14, 2020A circular celebration
Aug 21, 2021Ambassadors of the airwaves
Dec 6, 2021Computer Science EDU Week