1.   Ever since our space probes detected the faint hint of a grand salty sea beneath the frozen crust of Europa, speculation has run rampant.

2.   Most are built with concrete using salty sea sand, he said.

3.   Now, corrosion experts say, the prime evidence may have been obliterated by the salty sea.

4.   Salty sea air and frequent rains eroded much of the carvings years ago.

5.   The circulating currents of a salty sea would explain the unusual magnetic readings that other Galileo instruments have recorded.

6.   The smell of gunpowder hung in the salty sea air after the attack.

7.   But it is the bracing salty sea air that that is clearly having an effect.