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:

Nov 15, 2022River otters at Acadia National Park, Maine
Apr 26, 2025Redwood National and State Parks, California
Aug 7, 2019Nubble Island’s only industry
Oct 16, 2019Paleontology meets art
Nov 21, 2023Gray seal pup, Norfolk, England
Oct 9, 2020Falling for Tennessee
Mar 10, 2024Daylight saving time
Mar 7, 2020Summer winds down in the Southern Hemisphere
May 25, 2025Butchart Gardens in Brentwood Bay, British Columbia, Canada
Jan 18, 2023White Sands National Park turns 90
May 21, 2025International Tea Day
May 19, 2019High trekking season in Upper Mustang
Oct 27, 2024Polar Bear Week
Sep 25, 2018Walking among the giants
Dec 22, 2018Night of the ‘Cold Moon’
Jun 22, 2025World Rainforest Day
Apr 28, 2025Impala in Moremi Game Reserve, Botswana
Nov 23, 2021Fibonacci Day
Feb 18, 2020Too awesome to be a planet
Feb 11, 2024Folegandros Island, Cyclades, Greece
Jun 5, 2018Up, up, and away for Hot Air Balloon Day
Dec 16, 2025Handmade gnomes at a Christmas market
Sep 27, 2023Via Krupp, Capri, Italy
Apr 23, 2021A house of grand scale(s)
Aug 6, 2020Space-age style by the sea
Apr 29, 2018National Park Week: Olympic National Park, Washington
Oct 17, 2021A walk among the giants
Nov 3, 2022International Day for Biosphere Reserves
May 19, 2022Glass footbridge in Zhangjiajie, China
Apr 14, 2020A day for the dolphins