With a handful of primaries behind them and Super Tuesday fast approaching, presidential candidates have stumped and debated and cheered until their throats were sore and their voices hoarse.
The extinction of dinosaurs over 65 million years ago did not foster a breeding ground for ancestors of modern-day mammals, as scientists had previously thought, according to a study released Thursday in the journal Nature.
By Admin, PBS NewsHour
Unchecked global warming could impact the world economy on a scale comparable to world wars and the Great Depression, a report issued Monday by the British government says.
With more than 130 exhibits from scientists, researchers and inventors around the globe, NextFest brings its vision of a new world's fair to New York City. The NewsHour's economics correspondent Paul Solman reports on the high-tech tools and toys of…
The Nobel Prize in chemistry was awarded Wednesday to Roger Kornberg of Stanford University for his work on how cells use information in genes to produce proteins. He and his father Arthur Kornberg, also a Nobel laureate, discuss their achievements.
A report compiled by the National Academies of Sciences reveals a bias is preventing women from advancing in science and engineering at the rate of their male counterparts. An expert discusses the findings.
Amadou Ly, a Senegalese 18-year-old living alone in New York City, now faces deportation after revealing his illegal immigrant status on his way to his high school's robotics competition.
By PBS NewsHour
A stem cell researcher, whose team claimed it was able to create 11 stem cell lines genetically matched to certain patients, asked that his work be withdrawn from the journal Science after allegations were made that the results were fabricated.
Harvard President Lawrence Summers faced intense criticism for remarks he made about the shortage of women in the sciences and engineering at a Jan. 14 closed-door conference.
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