SUMMARY: A supernova remnant in the Small Magellanic Cloud is only 1,000 years old; making it one of the youngest ever discovered. However, astronomers are puzzled about its strange lack of dust. Current theories about supernovae predict that it should have 100 times the dust that astronomers can detect. It's possible that the supernova shockwaves prevented dust formation, or large amounts of colder dust just haven't been seen by infrared instruments.
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