For displaying jellyfish, The Monterey Bay Aquarium uses a Kreisel tank, which creates a circular flow to support and suspend… Free Image from public domain license 
Self-Portrait (1889) by Vincent Van Gogh. Original from The National Gallery of Art. Digitally enhanced by rawpixel. Free Image from public domain license 
The Starry Night (1889) by Vincent Van Gogh. Original from Wikimedia Commons. Digitally enhanced by rawpixel. Free Image from public domain license 
Iris flowers (1925 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
The Soyuz MS-02 spacecraft is seen as it lands with Expedition 50 near the town of Zhezkazgan, Kazakhstan, April 10, 2017.… Free Image from public domain license 
Phytoplankton bloom off Newfoundland. Original from NASA. Digitally enhanced by rawpixel. Free Image from public domain license 
On board the International Space Station NASA astronaut Scott Kelly captured this blue water image. Original from NASA .… Free Image from public domain license 
Le Ballon by Imprimeur E. Pichot. Original from Library of Congress. Digitally enhanced by rawpixel. Free Image from public domain license 
