Happy International Astronomy Day! May 3, 2025

Ever wondered what Saturn"s rings look like through a telescope? Or how astronomers spot distant galaxies? International Astronomy Day is the perfect time to find out! This annual event, first launched in 1973, is all about "Bringing Astronomy to the People"—the official theme of Astronomy Day. From local parks to astronomy clubs, museums and observatories, visitors can enjoy activities like telescope viewings, space talks and even Moon gravity simulators!

© Adventure_Photo/Getty Images

palette

Today in History

The animal kingdoms great migration
This lesson is going swimmingly
May 3, 2024The Sonoran Desert, Arizona, USA

More Desktop Wallpapers:

Let’s have a lek, see?
Jul. 21, 2025Coral Reef Awareness Week
Warm light through an ancient forest
Apr. 10, 2024Siblings Day
Oct. 26, 2025National Pumpkin Day
A beautiful labyrinth
Mar. 7, 2025Plum blossoms, China
Sep. 2, 2025Camel thorn trees, Namib-Naukluft Park, Namibia
Celebrating art in the city
A beach of many colours
Aug. 28, 2023Dubrovnik, Croatia
Dec. 29, 2023Oud-West neighbourhood, Amsterdam, Netherlands
A window to the Pacific
Nov. 10, 2023Badlands National Park anniversary
Feb. 4, 2025Golden Bridge, Bà Nà Hills, Da Nang, Vietnam
Dec. 6, 2025Everglades National Park, Florida, United States
Mar. 18, 2025Red Rocks, Sedona, Arizona, United States
Sep. 9, 2025A female Eurasian red squirrel, Switzerland
Jan. 30, 2025Vancouver International Boat Show
Nov. 5, 2025Peña Roya beech forest, Moncayo Natural Park, Aragon, Spain
Mar. 27, 2025World Theatre Day
A modern recreation
Dec. 3, 2025Sandhill cranes, Bosque del Apache National Wildlife Refuge, United States
Sep. 30, 2023Shenandoah National Park, Virginia
Apr. 10, 2025Siblings Day
Blue as far as the eye can see
Nov. 16, 2025A traboule in Lyon, France
The oldest way to fly
This lesson is going swimmingly
Dec. 9, 2023Los Glaciares National Park, Patagonia, Argentina