Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.
Illus. and text in: De caelo / Aristoteles. Venice : B. Locatellus for O. Scotus, 1495. Published in: The tradition of science / Leonard C. Bruno. Washington, D.C. : Library of Congress, 1987, p. 255.
Published in Concordia, p. 35.
France Public domain reproduction of print in Lyon municipal library, free to use, no copyright restrictions image - Picryl description
Paul Klee (German (born Switzerland), Münchenbuchsee 1879–1940 Muralto-Locarno) Public domain scan of 20th century German drawing, free to use, no copyright restrictions image - Picryl description
Architecture stock photograph: The milky way over the old house / A street with a building and a bird flying in the sky.
The sun is setting in the sky / The sun setting over the mountains public domain stock photo. The sun is setting in the sky / The sun setting over the mountains public domain stock photo.
Water: Free images of reflections in the water, available for commercial use and free download. Copyright-free, no attribution required. A large body of water under a cloudy sky
A red ladder against a blue sky / A ladder against a blue sky public domain stock photo.
The sky is a bit blue in the sky / A blue sky with clouds public domain stock photo.
A red circle with a yellow ball in it / A close up of a red object in a black background / Public domain stock illustration.
The aurora borealis in the sky / The northern lights in the sky public domain stock photo.
The stars are moving in the night sky / The stars are shining through the trees public domain stock photo. The stars are moving in the night sky / The stars are shining through the trees public domain stock photo.
A man stands in front of a stone hut under a starry night sky / A man standing in a field under a starry sky public domain stock photo. A man stands in front of a stone hut under a starry night sky / A man sta More
The milky way galaxy, taken from the top of a hill / The milky way galaxy in the night sky public domain stock photo.
A tree with a frond and a cloudy sky / A tree with a lot of leaves on it public domain stock photo.
Architecture stock photograph: The milky way over the old stone house at night / A building with a clock tower and a sky full of stars.
A collage of stars in a colorful background / A painting of a bunch of different colors / Public domain stock illustration.
Birds images: Free photographs of birds all over the World, available for commercial use and free download. Copyright-free, no attribution required.
Sunset over the mountains, orange sky / Sunset over the mountains in the desert public domain stock photo. Sunset over the mountains, orange sky / Sunset over the mountains in the desert public domain stock photo.
Free images of Universe. Download Universe art and posters. Use free Universe pictures without any copyright restrictions.
Free images of Universe. Download Universe art and posters. Use free Universe pictures without any copyright restrictions. An open window with a view of the night sky
A red and orange sky with clouds and a sunset / A sunset with a red sky and clouds public domain stock photo.