Iron is a major limiting factor in the Southern Ocean’s biological pump.
At heart, scientists and journalists do the same thing.
Finding the right clothing sizes for a truly South African fit.
Algal oil could become an important part of our future.
The ancient Greeks believed that the stars were fixed, an unchanging picture drawn across the night sky.
Ancient pollen "finger prints" tell secrets of our environment.
Understanding lightning and its effect.
The secrets of diamond discovery lie in magnesium-rich rocks.
A typical day for women in resource-poor communities such as the Sekhukhune district in Limpopo is far from easy.
Air pollution is overtaking the well-known mass killers such as poor sanitation, lack of clean drinking water and high cholesterol.