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Novel enzyme provides sperm’s spark of life
A molecule in sperm triggers a fertilized egg to begin developing.
By John Travis -
AnthropologyNeandertals return at German cave site
Researchers who tracked down the location of a German cave where the first Neandertal skeleton was discovered in 1856 have unearthed new Neandertal finds.
By Bruce Bower -
AstronomyMagnetars: A missing link
A rare group of ultradense stars may be magnetars, objects with the strongest magnetic fields known in the universe.
By Ron Cowen -
Health & MedicineRNA interferes with cancer-cell growth
To curb the growth of cancer cells, scientists are silencing genes by introducing small strands of RNA.