A demographic transformation in Africa has the potential to alter the world order Last November, the global population reached a significant milestone of 8 billion. More recently, in April, India ...

Far beneath the waves of the southwest Pacific, scientists have finished charting a landmass so large and so coherent that it ...

Geoscientists have solved an age-old mystery of oceanic volcanism and plate tectonics, explaining why some islands contain so much continental material despite their distance from continental plates.

A woman's hand is marked with ink before casting her ballot in national elections April 22, 2009 in Alexandra Township, South Africa [John Moore/Getty Images] For far too long, African youth have been ...