Why danger symbols can’t last forever

You probably know how this symbol is supposed to make you feel. And this one. This one too, even if you’re not sure exactly what it means. But what about this? This symbol — The Jolly Roger — was once one of the most feared symbols in the world. It represented death, pirates, and poison. […]

Will We Survive Mars? – Glad You Asked S1 (E1)

( music playing )– Uh-oh. – Ow, ow, ow, ow. The pain. Ready? Ah! We’re in the middle of an ancient lake basin, that scientists think is one of the most Martian places on Earth. And we’re stuck.We’re stuck here because I had a question.NASA says the first humanswill set foot on Mars in the […]