Powerful cosmic explosions left abundant stardust in the solar system

Recent research has revealed the amount of stardust created by supergiant stars and spread through space by massive cosmic explosions called supernovas present in the solar system is greater than previously believed.

The revised analysis of stardust has been made possible by the NanoSIMS ion probe which is capable of measuring the distribution of isotopes — atoms of an element with the same number of protons but a different number of neutrons — created by supergiant stars.

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