A chemical element that’s not even in H 2 O — sulfur — is the reason Earth first got its water, a new study finds, bolstering a similar claim made a year ago. The discovery means our planet ...

Curiosity had already discovered sulfates on Mars, or salts that contain sulfur that are formed when water evaporates. The team has seen evidence of bright white calcium sulfate, also known as ...

III., that a correspondent at Sparta, Ga., asks the question whether sulphur water could have been the cause of his flue boiler exploding. Sulphur water, as it is commonly called, we are very ...