Shadow and Rainbow (July 18, 2026)
July 18, 2026 6:10am
NASA Astronomy Picture of the Day for 2026-07-18 is titled "Shadow and Rainbow." The release is published as a image and pairs imagery with an official science...
NASA Astronomy Picture of the Day for 2026-07-18 is titled "Shadow and Rainbow." The release is published as a image and pairs imagery with an official science explainer from NASA. The post highlights a specific observable scene and provides technical context for why the view matters.
5-Second Takeaway
NASA Astronomy Picture of the Day for 2026-07-18 is titled "Shadow and Rainbow." The release is published as a image and pairs imagery with an official science explainer from NASA.
Why This Matters
The post highlights a specific observable scene and provides technical context for why the view matters.
What Changed
- NASA published this Astronomy Picture of the Day on 2026-07-18.
- The item title is Shadow and Rainbow and the media type is image.
- The image and caption describe observable features highlighted in this release.
- NASA's accompanying explanation provides observation context and interpretation notes.
- Caption excerpt: At sunset, an alignment of rainbow and mountain shadow was captured in this remarkable snapshot. The stunning view was recorded from a fire lookout on Smith Peak in the Plumas National Forest near Portola, California on July 13. Still, near sunset it's no accident that the majestic mountain shadow seems to point to the center of the graceful rainbow arc. Due to perspective and the long line of sight the mountain shadow naturally forms a tapering triangular shape, its apex positioned at the point opposite the Sun on the horizon. Following thunderstorms across the region, the rainbow arcs across the early evening sky, with its colorful and characteristic 42 degree arc formed as sunlight is refracted and reflected by the atmospheric water droplets. The geometric center of a rainbow arc lies at the antisolar point. And in this scene from the golden hour on planet Earth, that's also oposite
- Full mission and image details are available in the official APOD entry.
- NASA APOD page: https://apod.nasa.gov/apod/image/2607/ShadowandRainbow_Loschiavo1024.jpg
- NASA open API portal: https://api.nasa.gov/
Key Facts
- NASA published this Astronomy Picture of the Day on 2026-07-18.
- The item title is Shadow and Rainbow and the media type is image.
- The image and caption describe observable features highlighted in this release.
- NASA's accompanying explanation provides observation context and interpretation notes.
Key Numbers
- NASA published this Astronomy Picture of the Day on 2026-07-18.
- Caption excerpt: At sunset, an alignment of rainbow and mountain shadow was captured in this remarkable snapshot. The stunning view was recorded from a fire lookout on Smith Peak in the Plumas National Forest near Portola, California on July 13. Still, near sunset it's no accident that the majestic mountain shadow seems to point to the center of the graceful rainbow arc. Due to perspective and the long line of sight the mountain shadow naturally forms a tapering triangular shape, its apex positioned at the point opposite the Sun on the horizon. Following thunderstorms across the region, the rainbow arcs across the early evening sky, with its colorful and characteristic 42 degree arc formed as sunlight is refracted and reflected by the atmospheric water droplets. The geometric center of a rainbow arc lies at the antisolar point. And in this scene from the golden hour on planet Earth, that's also oposite
- NASA APOD page: https://apod.nasa.gov/apod/image/2607/ShadowandRainbow_Loschiavo1024.jpg