Science Magazine

Science Magazine

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  • The placenta, long thought to be sterile, has a bacterial community similar to the one found in the mouth. | AAAS/Carla Schaffer A small but diverse bacterial community calls the placenta home, scientists have discovered. The findings, from a new study of hundreds of placentas taken from healthy...
  • The skeleton of Naia, along with bones from saber-tooth cats and other animals, was discovered in the Yucatán's Hoyo Negro cave. | Slideshow by AAAS The discovery of a near-complete human skeleton in a watery cave in Mexico is helping scientists answer the question, "Who were the first Americans?"...
  • Researchers can make rodents forget their fears by encouraging the development of new neurons. | AAAS/Carla Schaffer Why is it so hard to recall memories from early childhood? A new study suggests that the birth of new neurons could play a significant role in this "infantile amnesia," which seems...
  • An older woman was buried in a hurry in the mid-1800s at Badia Pozzeveri graveyard in Altopascio, Italy. She was entombed in lime, probably to quell infection during an epidemic. Archaeological research at this graveyard was the subject of an award-winning news feature in Science . | Francesco...
  • An exceptionally bright supernova reported in 2013 gets its intense glow from the lensing effect of a nearby galaxy, according to a study in the 24 April issue of Science . The galaxy's gravity may bend light from the supernova, called PS1-10afx, in the same way that a glass lens focuses light. The...
  • When nephrologist Ramón García Trabanino began working at San Salvador's Hospital Nacional Rosales as a medical student, the huge number of chronic kidney disease (CKD) patients startled him. So in 1999, he did a study and found that two-thirds of the patients did not have diabetes, hypertension,...