NASA's Astronomy Picture of the Day for September 29, 2026 featured Sh2-188, known as the Shrimp Nebula. According to the accompanying explanation, the nebula spans about half the diameter of the Moon, making it one of the larger planetary nebulas in angular size on the night sky. Its white-dwarf core, left behind by a Sun-like star that shed its outer atmosphere, is moving unusually fast through interstellar space, producing a bow shock most visible on the upper left, similar to a boat moving through water. Although faint, the nebula also glows by compressing and brightening gas at its leading edge.

The image was taken in the light of hydrogen, sulfur and oxygen by a backyard telescope in Krakow and then digitally adjusted to approximate the nebula's true colors. The image is credited to Pawel Piechnik, with Robert Nemiroff, Jerry Bonnell, Cecilia Chirenti and Keighley Rockcliffe listed as authors and editors.

The posting also noted that APOD's photo submission email address has changed and that its main NASA site has moved from apod.nasa.gov to science.nasa.gov/apod. The next day's entry was planned as "open space."