Newfound gas cloud may be graveyard of first stars

Scarcity of heavy elements points to universe’s earliest stellar inhabitants

star explosion simulation

ELEMENTAL DIVERSITY  Explosions of first-generation stars (one simulated here) produced elements heavier than helium and spread them throughout the cosmos. A newly discovered gas cloud may hold the signature of these ancient explosions. The densest gas in this explosion is shown in red.

B. Smith et al/arXiv.org 2015

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