Subj : Daily APOD Report To : All From : Alan Ianson Date : Wed Jun 18 2025 00:11:38 Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2025 June 18 A detailed view of part of Earth's Moon is shown with many craters visible. On the lower right, silhouetted against the comparatively bright Moon, is a small dark silhouette of the International Space Station. Many of the solar panels on the station are discernable. Please see the explanation for more detailed information. Space Station Silhouette on the Moon Image Credit & Copyright: Eric Holland Explanation: What's that unusual spot on the Moon? It's the International Space Station. Using precise timing, the Earth-orbiting space platform was photographed in front of a partially lit gibbous Moon in 2019. The featured image was taken from Palo Alto, California, USA with an exposure time of only 1/667 of a second. In contrast, the duration of the transit of the ISS across the entire Moon was about half a second. A close inspection of this unusually crisp ISS silhouette will reveal the outlines of numerous solar panels and trusses. The bright crater Tycho is visible on the lower left, as well as comparatively rough, light colored terrain known as highlands and relatively smooth, dark colored areas known as maria. Downloadable apps can tell you when the International Space Station will be visible from your area. APOD Turns 30!: Free Public Lecture in Cork, Ireland on June 24 Tomorrow's picture: galaxy in a bubble __________________________________________________________________ Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) NASA Official: Amber Straughn Specific rights apply. NASA Web Privacy, Accessibility, Notices; A service of: ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. --- BBBS/Li6 v4.10 Toy-7 * Origin: The Rusty MailBox - Penticton, BC Canada (1:153/757) .