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

palette

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:

Jun 23, 2025The Elbe in Dresden, Germany
Sep 8, 2025International Literacy Day
Jan 5, 2021Flying high on National Bird Day
Feb 14, 2020Two rocks and a heart spot
Mar 22, 2023World Water Day
Jun 4, 2024Chestnut-headed bee-eaters, Bardia National Park, Nepal
Jul 5, 2022Fannette Island, Lake Tahoe
Dec 6, 2022Everglades National Park turns 75
Sep 6, 2024Glenariff Forest Park, Northern Ireland, UK
Apr 11, 2020Think deep thoughts
Jan 26, 2024Northern hawk-owl
Jan 31, 2019A bohemian feline
Nov 18, 2020An aviation celebration
Oct 3, 2018Monarch butterflies migrate south
Dec 1, 2018A treaty for science
Jun 2, 2021The dry days of winter in Etosha
Jan 22, 2019Is this Minecraft headquarters?
Apr 14, 2024Bowling Ball Beach in Mendocino County, California
Nov 26, 2021Native American Heritage Day
Jun 23, 2024Dhaka, Bangladesh
Oct 20, 2025International Sloth Day
Feb 26, 2023Tambopata National Reserve, Peru
Feb 20, 2022World Whale Day
Jan 14, 2020Going head-to-head with winter
Oct 1, 2023Lake Bled, Slovenia
May 7, 2025Dunluce Castle, County Antrim, Northern Ireland
Feb 15, 2022Lantern Festival
Jun 22, 2025World Rainforest Day
Apr 3, 2021A light at the edge of the world
Mar 6, 2018Celebrating National Dentist Day