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:

Aug 2, 2022Happy birthday, Capitol Reef National Park
Jan 5, 2020Digging the birds
Oct 8, 2022World Octopus Day
Apr 14, 2021Nothing plain about it
May 25, 2025Butchart Gardens in Brentwood Bay, British Columbia, Canada
Jan 10, 2025Abraham Lake, Alberta, Canada
Mar 19, 2024Spring equinox
Mar 27, 2021Blink and you ll miss it
Jan 17, 2025Brown pelican, San Diego, California
Nov 15, 2022River otters at Acadia National Park, Maine
Sep 17, 2025A young bull moose in Denali National Park, Alaska
Oct 16, 2023Golden larches and Prusik Peak, the Enchantments, Washington
Sep 25, 2023Sea Otter Awareness Week
Mar 5, 2025Khao Sok National Park in Thailand
Aug 25, 2023National Park Service anniversary
Feb 15, 2025The natural ice wall of Misotsuchi, Chichibu, Japan
Apr 24, 2019Cool water in the Quinault
Jun 9, 2020Gem State views
Aug 30, 2025International Whale Shark Day
May 18, 2024International Museum Day
Oct 8, 2021An uncommonly cool critter
Feb 4, 2023Rosa Parks Day
Feb 24, 2019A long path to freedom
Apr 9, 2020Hooray, hooray, it s Unicorn Day!
Nov 21, 2023Gray seal pup, Norfolk, England
May 25, 2020Here we mark the price of freedom
Jul 20, 2024International Moon Day
May 17, 2023Natural Bridges State Beach in Santa Cruz, California
Mar 20, 2026Spring equinox
Sep 19, 2019Fall for birding