Scientists can use modern rocks, moon samples and meteorites to figure out when and how the Earth and moon formed, and what they might once have looked like.

Following the onset of the recent global economic crisis, much of the news, especially in advanced economies, was dire. Unemployment was rising, company profits were falling, financial markets were ...

If there is a point on which most economists agree, it is that trade among nations makes the world better off. Yet international trade can be one of the most contentious of political issues, both ...