Satya Nadella on the journey to becoming Microsoft's CEO & reimagining technology's impact

The table below shows the number of chickens sold by four friends from January to March. Except one entry is missing. What number should go in the empty cell? So, let’s see. This is the empty cell right over here they haven’t filled out. How many? Let’s …

Why are we so fascinated with Mars? There’s this visceral connection that we have. It’s been a constant steady light in the night sky for us. You and I can go outside tonight on a clear night, look towards the southwestern sky, and see a bright orange sta…

When I told my parents that I was visiting, the first thing they thought of was Afghanistan. It’s close to the border; watch out! I think because people don’t know a lot about it, they don’t know a lot about the culture, what’s there, and people are scare…

Fever feels bad. So we take medication to suppress it – but is this a good idea? It turns out fever is one of the oldest defenses against disease. What exactly is it, how does it make your immune defense stronger and should you take a pill to combat it? …

[Music] Earth and civilization, as we know it, has come a long way in the past 200,000 years and has experienced a multitude of changes. In that time, the human species has only existed for a mere 0.0015 percent of the immense 13.7 billion-year age of the…

Recently, there’s been a lot of excitement about this mysterious star and the K2 data from the Kepler space telescope. This star has a bizarre dip in the amount of light that reaches Earth. There is a chance that maybe the dip in the light is caused by an…