‘Night shining’ clouds

‘Night shining’ clouds

Noctilucent clouds in Lithuania (© ljphoto7/Getty Images)

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Today in History

Is anybody home?
Jul. 31, 2024Hoodoos, Sunset Point, Bryce Canyon National Park, Utah, USA
Jul. 31, 2025Kalalau Beach on the Nā Pali Coast, Kauai, Hawaii, United States
Jul 31, 2026Virginia Creeper Trail, Damascus, Virginia, United States

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Jun 29, 2026International Day of the Tropics
Mar. 23, 2025World Meteorological Day
Apr. 8, 2024Total solar eclipse
Apr. 9, 2024World Ski and Snowboard Festival
Jul. 26, 2025International Day for the Conservation of the Mangrove Ecosystem
The lonely castle
Nov. 15, 2025Irohazaka Road in autumn, Nikko, Tochigi, Japan
Apr. 10, 2024Siblings Day
Rocky Mountain runoff
Dec. 2, 2023Angkor, Cambodia
Golden cliffs of deep space
Dec. 26, 2024Boxing Day
Celebrating the Scottish bard
What are these predators doing?
The other continent down under
Feb. 9, 2025Alstrom Point, Lake Powell, Utah, United States
Apr. 19, 2024Ring of Brodgar, Orkney, Scotland
Nov. 7, 2025Polar Bear Week
May 8, 2025World Donkey Day
May 24, 2024Ordesa y Monte Perdido National Park
Dec. 1, 2023Lake Minnewanka, Alberta
Apr. 13, 2026International Dark Sky Week
Blue hues and ceramic scenes of Porto
Apr. 11, 2024Dragon waterfall, Venezuela
Aug. 20, 2024Sunrise at Grand Teton National Park, Wyoming, USA
Mar. 10, 2026Bláhver, Hveravellir, Iceland
Sep. 14, 2023Przewalskis horses, Hustai National Park, Mongolia
This blue succulent is as good as gold here
Sep. 24, 2024Skaftafell, Vatnajökull National Park, Iceland
Jun 17, 2026Tremola Road on the Saint Gotthard Pass in Airolo, Switzerland