Plankton make up 98 percent of the biomass of ocean life and provide half of the oxygen on the planet. Scientists are working to figure out how climate change may be affecting these important microorganisms.
Credit S. Bollet / Tara Expeditions
The 118-foot research schooner Tara made an around-the-world expedition over 21/2 years. Scientists aboard discovered up to a million new species of plankton. Now begins the work of determining how climate change might be affecting these microorganisms.
President Obama and his Republican challenger, Mitt Romney, are prepping for Wednesday's presidential debate. It's a well-worn tradition now, but it wasn't always that way.
The 1960 Kennedy-Nixon face-off wasn't just the first televised presidential debate, it was also the first presidential debate in more than a century.
Four years earlier, a young German emigre named Fred Kahn, a student at the University of Maryland, wanted to see whether the nominees — Dwight Eisenhower and Adlai Stevenson — might want to engage with students.
You probably don't give much thought to the phrase "Made in China" when you see it written on the bottom of your coffee mug, or on the tag of your T-shirt, but Americans have traded with China for hundreds of years.
In his new book, When America First Met China, Eric Jay Dolin takes us back to the beginning of the long and complicated trade relationship between the two countries.