How much do you know about the world? Hans Rosling, with his famous charts of global population, health and income…
Why is there something instead of nothing? In other words: Why does the universe exist (and why are we in…
A forest planted by humans, then left to nature’s own devices, typically takes at least 100 years to mature. But…
Which of the following is awesome: your lunch or the Great Pyramid of Giza? Comedian Jill Shargaa sounds a hilarious…
Across sub-Saharan Africa, small farmers are the bedrock of national and regional economies—unless the weather is unpredictable and their crops…