The Cartwheel galaxy has a weird wheel-like shape when a smaller galaxy crashes through it.
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The Cartwheel universe and its companions.
The ERO production team is made up of NASA, CSA,STScI and others.
One of the strangest galaxies in the universe has been captured by theJWST. Dust obscures the details of the Cartwheel galaxy, which makes studying it difficult, but the new images from JWST show it in more detail than before.
About 500 million light years away, the Cartwheel galaxy is 150,000 light years across. The nested ring shapes we see today were created by the waves of stars and gas rippling out from the galaxy's centre after one of its companion galaxies blasted through it.
There is a ring of hot, bright dust surrounding the stars at the center of the galaxy. As the outer ring expands, it smashes through the gas surrounding the galaxy and causes a burst of star formation, which illuminates the surrounding dust.
The spokes connecting the two rings appear to be remnants of the spiral arms of the galaxy. Karl Gordon at the Space Telescope Science Institute says that the dust is illuminating the spokes and rim of the wheel. It's telling us there's a lot of star formation going on.
There is a region of star formation at the bottom right of the galaxy that is brighter than expected. They will gain more insight into how the Cartwheel galaxy is evolving and what it might look like in the future as the aftermath of its titanic collision settles down.
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