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December 17, 2025
Day 17 of the 2025 Space Telescope Advent Calendar: Distant Starbursts
Day 17 of the 2025 Space Telescope Advent Calendar: Distant Starbursts. Last year, the James Webb Space Telescope made this observation of a dwarf irregular galaxy named I Zwicky 18, some 59 million light-years away from Earth. At the heart of the galaxy are two major star-forming regions surrounded by clouds of gas that have been sculpted by the stellar winds of the hot, young stars.
TL;DR
- The James Webb Space Telescope observed the dwarf irregular galaxy I Zwicky 18.
- I Zwicky 18 is located 59 million light-years from Earth.
- The galaxy contains two major star-forming regions at its core.
- These regions are encircled by gas clouds influenced by stellar winds from young, hot stars.
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