Comets may bring ingredients for life most easily to clustered planets
Comets may be a key source for the building blocks of life, but the only planetary systems where those ingredients could survive impact may be ones with large stars or lots of neighbouring worlds
![Comets may bring ingredients for life most easily to clustered planets](https://images.newscientist.com/wp-content/uploads/2023/11/14213339/SEI_180169239.jpg)
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