* Genes may help predict infidelity, study finds:
Could DNA tests tell you your risk of being cuckolded? Scientists think so.
* Ancient sky calculator awes scientists:
A 2,000-year-old computer could transform our view of the ancient world, according to researchers.
* Success may be a 'family affair':
A study has led researchers to speculate that career success may be partly genetic.
* Science teachers' association accused of oil company influence:
After the top U.S. science teachers' group spurned some free DVDs, a controversy erupted over a reason they gave for doing so.
* Backache? Sitting upright could be culprit:
"Dignified" might not always equal healthy, a study suggests.
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