The images revealed by the James Webb Space Telescope do not cease to amaze. Now, its instruments peer into the chaos of the Cartwheel Galaxy, revealing new details about star formation: Webb’s powerful infrared look has detected that, in that galaxy,Two other small galaxies appear against the background of many others.
The shot provided new insight into how the Kartwell wheel has changed over billions of years. Located about 500 million light-years away in the constellation of the Sculptor, this galaxy is a rare sight. Its appearance, very similar to that of a wheel, is caused by an extreme event: a high-speed collision between a large spiral galaxy and a smaller galaxy. Collisions of galactic dimensions always cause a series of small and different events between the galaxies involved. The wagon wheel was no exception: the impact affected above all its shape and structure.
This galaxy has two rings, a bright inner one and a colorful surrounding one. It expands outward from the center of the collision, like ripples in a puddle after a stone is thrown into it.
Because of these distinctive features, astronomers call it a “ring galaxy,” a structure less common than spiral galaxies like the Milky Way.
The bright core contains a huge amount of hot dust, and the brightest regions are home to huge groups of young stars.
On the other hand, the outer ring, which has been expanding about 440 million years ago, is dominated by star formation and supernovae. When this ring expands, it penetrates the surrounding gas and leads to star formation.