A rare meteorite recovered from Alaska is prompting scientists to rethinkhow Earth got its water. New findings suggest our planet may have had the hydrogen needed to form water on its own, without ...

An all-female research group, As Meteoriticas, scours the South American country’s interior aiming to preserve meteorites for scientific study and public display. From right, Elizabeth Zucolotto, ...

Space mining often sounds like a fast route to endless metals. In practice, the first question is simple: what are small ...