Questions for ‘Mapping the Unknown’
![supernova](https://www.snexplores.org/wp-content/uploads/2019/11/Questions-header-Supernova_Bubble.jpg)
A blast wave ripples outward from a type 1a supernova. Light from these explosions can help map changes in the evolution of the cosmos.
NASA/Wikimedia Commons
A blast wave ripples outward from a type 1a supernova. Light from these explosions can help map changes in the evolution of the cosmos.
NASA/Wikimedia Commons
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