Safari Live - Day 368 | National Geographic

A ball of fire pierces the atmosphere of Mars, plummeting towards the surface at 13,200 miles per hour. This fireball across the horizon marks the end of a 301 million mile journey for NASA’s InSight and the beginning of a groundbreaking mission. For five…

This year is the warmest on record, and with ocean temperatures reaching dangerously high levels, a major coral bleaching event is predicted to hit the Great Barrier Reef. It’s a race against time to document these reefs before climate change alters condi…

What I’d like to do in this video is a few more examples recognizing the slope and y-intercept given an equation. So let’s start with something that we might already recognize: let’s say we have something of the form (y = 5x + 3). What is the slope and …

Hey, Vsauce. Michael here. This appears blue. This appears yellow. And this appears green. Those of us with normal color vision can probably agree. But that doesn’t change the fact that color is an illusion. Color, as we know it, does not exist in the out…

[Music] I was born and raised in the chaotic streets of Mexico City. This is Jorge Kanyes, an activist. He’s standing at an intersection in Mexico City, wearing a black mask and a cape. I was an ordinary citizen until one day I went to a lucha libre match…

Every day is magical. At Disney’s Animal Kingdom theme park. But for Mac, the African bull elephant, today is once in a lifetime. So today is Mac’s 40th birthday. So we are getting together a little birthday party for him. We have a birthday cake made by …