When we gaze up at the stars, we assume we are late to the party. The universe is ancient—more than 13.8 billion years old. Our Sun, in contrast, is a mere 4.6 billion years old, and humanity has existed for only the final blink of that span. Surely, we reason, if life could arise here,... Continue Reading →
The Fourth Dimension Explained… With an Apple
Have you ever tried to imagine a fourth dimension? Not time, but a spatial fourth dimension—beyond up/down, left/right, and forward/backward. It's a mind-bending concept that can feel as slippery as trying to hold a shadow. But what if we used something simple, like an apple, to make it a bit easier to digest? Welcome to... Continue Reading →