A rare and highly reactive iron mineral called green rust appears to have played an important role in ancient oceans, suggest new findings, which may have implications for the formation of Earth’s ...

A rare and highly reactive iron mineral called green rust appears to have played an important role in ancient oceans, suggest new findings, which may have implications for the formation of Earth’s ...

A rare kind of mineral which scientists hope could be used to remove toxic metals and radioactive species from the environment played a similar, crucial role early in Earth's history. Research carried ...

Iron formations deposited in marine settings during the Precambrian represent large sinks of iron and silica, and have been used to reconstruct environmental conditions at the time of their formation.

Mars is a large enough planet that astrobiologists looking for life need to narrow the parameters of the search to those environments most conducive to habitability. NASA's Mars Curiosity mission is ...