Windows to the Universe

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms.
Courtesy of Corel

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A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms. Courtesy of Corel

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms. Courtesy of Corel

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms. Courtesy of Corel

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms.
Courtesy of Corel

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms.
Courtesy of Corel

A cartoon drawing of water molecules (H2O). Each round ball represents an atom. The smaller round balls are hydrogen atoms and the larger balls are oxygen atoms.
Courtesy of Corel