Edited by John L. Petersen
johnp@arlingtoninstitute.org

In This Issue:

• Scientists say they have found the best evidence yet that an ocean of liquid water may be hidden below the surface of Saturn’s giant moon Titan.

• Among the approximately 23,000 genes found in human DNA, scientists currently estimate that there may be as few as 50 to 100 that have no counterparts in other species.

• Mobile phones could kill far more people than smoking or asbestos, a study by an award-winning cancer expert has concluded.

• Archaeologists carrying out an excavation at Stonehenge say they have broken through to a layer that may finally explain why the site was built.

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