But now, scientists have for the first time identified water molecules on two supposedly "dry" main-belt asteroids, 7 Iris and 20 Massalia, using data from a now-retired airborne telescope.

The second space-filling model shows two sucrose molecules held together by their opposite polar areas. These molecules will separate from each other when sucrose dissolves. Water molecules arrange ...

Water is a compound of hydrogen and oxygen. The chemical name for water is H₂O because each of its molecules contain two hydrogen atoms and one oxygen atom. Presenter: So we call these molecules?

Water is a compound of hydrogen and oxygen. The chemical name for water is H₂O because each of its molecules contain two hydrogen atoms and one oxygen atom. Presenter: So we call these molecules?