Astronomy Picture of the Day (APOD) is a popular NASA resource that publishes images and photographs of space daily with explanations from professional astronomers. The October 9, 2026 edition is devoted to Stickney crater, located on Phobos — one of two moons of Mars. Stickney is the largest known crater on this small celestial body and occupies a significant portion of its surface. It was formed as a result of a powerful collision that, according to scientists, nearly destroyed Phobos itself. Similar images and explanations are regularly published on the APOD portal, which maintains an archive of materials searchable by date and also offers educational sections and the ability to submit your own space photographs. The resource is supported by a community of professional astronomers and enthusiasts interested in exploring the Solar System and deep space.