James Webb Space Telescope Feed Post

This Tiny Galaxy Is Answering Some Big Questions

Little galaxies can hold big clues. Webb took a look at Leo P, a dwarf galaxy, and its patterns of star formation. Isolated from the influence of larger galaxies like the Milky Way and Andromeda, Leo P formed stars early on, and then stopped shortly after a period known as the Epoch of Reionization. Most dwarf galaxies with star formation that shuts down, never resume it. Unusually Leo P did start forming new stars again. But why? Read more: www.stsci.edu/contents/news-releases/2025/news-2025-401 Image credit: NASA, ESA, CSA, Kristen McQuinn (STScI) Image description: A concentration of bright blue stars occupies the bottom right corner of the image. At bottom center within them is a small blue bubble. The stars and bubble are part of a diffuse dwarf galaxy that extends beyond the image border. Background galaxies are scattered across the image, with some particularly prominent spirals located at upper left and upper right. The background of space is black. Image & Description by NASA