Haiti quake toll rises to 17

The death toll from the earthquake that struck northwest Haiti over the weekend has risen to 17, with nearly 350 others injured, the interior ministry said Tuesday.

Mexico marks twin anniversaries of deadly quakes

Mexico marks the anniversaries Wednesday of two deadly earthquakes: one that devastated the country last year, claiming 369 lives, and another that killed more than 10,000 people on the same date in 1985.

Expanding DNA's alphabet lets cells produce novel proteins

Scientists are expanding the genetic code of life, using man-made DNA to create a semi-synthetic strain of bacteria—and new research shows those altered microbes actually worked to produce proteins unlike those found in ...

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