Using light to connect molecules

Molecular clusters are aggregates of molecules that are held together non-covalently, by relatively weak forces. When these clusters are excited, normally one would expect the cluster to simply break apart. However, a fascinating ...

How did the Butterfly Nebula get its wings? It's complicated

Planetary nebulae form when red giant stars expel their outermost layers as they run out of helium fuel—becoming hot, dense white dwarf stars that are roughly the size of Earth. The material that was shed, enriched in carbon, ...

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