News
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Health & MedicineRisky Legacy: African DNA linked to prostate cancer
The high rate of prostate cancer among African American men may result in large part from a newly identified stretch of DNA passed down from their African ancestors.
By Ben Harder -
AstronomyEnlightened: Dark matter spotted after cosmic crash
In the aftermath of a cosmic crash between two galaxies, researchers say they've detected invisible dark matter for the first time.
By Eric Jaffe -
Health & MedicineBreast milk may not be enough
Breast-fed infants need vitamin D supplements, at least in winter.
By Janet Raloff -
Placebo predictions
Giving patients placebo pills for a week before they begin to participate in trials of antidepressants can help clinicians gauge how well they will respond to the actual medication.