Clouds are more than water and a muse. They play an important role in regulating the temperature of the planet. Now NASA's new GLOBE Observer app makes it easy for us all to be guardians of the planet.
The population of African penguins has dwindled drastically over the past three decades, mostly as a result of human activity. Now humans are stepping in to try to save them from extinction. BirdLife South Africa plans to build a new colony for the animals.
With more than one million people being diagnosed with drug-resistant tuberculosis each year, it has become difficult to fight the disease. But Africa’s scientists are making progress by targeting bacteria using techniques that have never been applied to TB research.
Africa is about to launch its first private satellite. It's a unique achievement - not least because the engineers designing the satellite's payload aren’t veteran astrophysicists, as you might expect. They’re teenage schoolgirls.