What a zinc gradient in dentin could mean for fillings and tooth health

Teeth are composites of mineral and protein, with a bulk of bony dentin that is highly porous. This structure allows teeth to ...

Microbes Can Mine Metals In Space. Scientists Think They Could Help Humans Explore the Stars.

Finding resources far from Earth is a well-known spaceflight limitation, but metal-harvesting microbes provide a method for tapping outer space’s mineral wealth.