Newfound gas cloud may be graveyard of first stars
Scarcity of heavy elements points to universe’s earliest stellar inhabitants
![star explosion simulation](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/01/010816_ag_firststars.jpg?fit=860%2C460&ssl=1)
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