Articles by Devin Powell
Relief workers warned that more buildings might collapse.
Obama's address celebrates science and technology but leaves anxieties about budget freeze.
Researchers race to bring cheap HIV testing to rural regions of developing countries.
Examining the amazing flight abilities of the common fly.
Doubt over claims that we descended from new species and disagreement about how close a cousin it was.
Study shows risks of staffing fire engines with small crews.
A good hand scrubbing can wash away not only sins but also our regrets about everyday, mundane choices.
The best visual illusions of 2010 were announced during for the Sixth Annual Illusion of the Year Contest this week.
A new molecule blocks the ability of the tongue to taste bitter foods.
Legacy of Illegal hunting in the 1960s revealed.