News
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GeneticsMonkeys born with edited genes
A DNA-snipping technique inspired by bacteria shows therapeutic promise.
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CosmologySlow, cold start to universe suggested
By allowing particle masses to change, a new theory suggests how the universe could have arisen without a Big Bang.
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Health & MedicineImmunotherapy attacks aberrant cervical growth
The treatment might stop cancers before they arise.
By Nathan Seppa -
HumansNeandertal hot spots highlighted in modern humans’ DNA
Mating with evolutionary cousins produced genetic trade-offs for Stone Age people.
By Bruce Bower -
LifeA little acid or a tight squeeze can turn a cell stemlike
Stresses send mouse cells into primordial state capable of making any tissue.
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NeuroscienceFamous brain surgery patient H.M. retained a chunk of hippocampus
The patient's amnesia was probably due to the loss of other regions and neural connections.
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Health & MedicineNanopackaging biodegrades after delivering cancer drug
DNA binding creates potentially nontoxic tumor-targeting structures.
By Beth Mole -
AnimalsWindows may kill up to 988 million birds a year in the United States
Single-family homes and low-rise buildings do much more damage than skyscrapers.
By Susan Milius -
LifeHow to tell good gut microbes from bad
Researchers sort out influences of specific bacteria on body fat, the immune system.
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AnimalsMantis shrimp’s bizarre visual system may save brainpower
The mantis shrimp sees each color separately with one of a dozen kinds of specialized cells, a system that may help the animal quickly see colors without a lot of brainpower.
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Planetary ScienceOld rover finds new evidence of water on Mars
Opportunity’s analysis of rocks at Endeavour crater reveals chemistry that could have supported life.
By Meghan Rosen -
PhysicsLaser builds mirror by pushing beads together
The light technique may one day be used to build giant telescopes in space.
By Andrew Grant