News
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Giardia Bares All: Parasite genes reveal long sexual history
Sexual reproduction started billions of years ago, as soon as life forms that have nuclei and organelles within their cells branched off from their structurally simpler ancestors.
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Health & MedicineUrine test signals pregnancy problem
A simple urine test can warn women that they have an increased risk of preeclampsia, a dangerous complication of pregnancy.
By Nathan Seppa -
TechCongealing useful oddballs
A device for manipulating liquid droplets turns out to have the unexpected ability to fabricate tiny, solid balls with unusual, and potentially useful, patterned structures inside.
By Peter Weiss -
ChemistryBuilding artificial cells from scratch
Scientists have created artificial cells that can live and produce proteins as their natural counterparts do, but can't replicate.