'Profound' evolution: Wasps learn to recognize faces

One wasp species has evolved the ability to recognize individual faces among their peers—something that most other insects cannot do—signaling an evolution in how they have learned to work together.

Masses of common quarks are revealed

(PhysOrg.com) -- A research group co-founded by Cornell physics professor G. Peter Lepage has calculated the mass of the three lightest and, therefore, most elusive quarks: up, down and strange.

Research illuminates inaccuracies in radiocarbon dating

Radiocarbon dating is a key tool archaeologists use to determine the age of plants and objects made with organic material. But new research shows that commonly accepted radiocarbon dating standards can miss the mark—calling ...

Researchers suspend, image single DNA molecules

(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands of DNA from chromosomes, ...

Field geology at Mars' equator points to ancient megaflood

Floods of unimaginable magnitude once washed through Gale Crater on Mars' equator around 4 billion years ago—a finding that hints at the possibility that life may have existed there, according to data collected by NASA's ...

Pregnant women get morning sickness to protect fetus

Morning sickness. It's the bane of many of a pregnancy. And many a future mother wonders at the apparently unnecessary suffering. But, it turns out, there's meaning to the misery. Two evolutionary biologists report that morning ...

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