Synonyms for individual words can be found below.
«ancient»
«black»
«holes»
Sentences with «ancient black holes»
- Is dark matter composed of ancient black holes nearly as old as the universe? (techtimes.com)
- Smith and his team favour the latter explanation, but just how ancient black holes got so big so quickly remains a mystery. (newscientist.com)
- «New strategy to search for ancient black holes.» (sciencedaily.com)
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sentences)