Shooting stars aren't actually stars at all! They're called meteors, and they're tiny pieces of dust and debris from space that enter Earth's atmosphere. Here's why they appear to shoot across the sky:

* Speed: Meteors enter Earth's atmosphere at incredibly high speeds, typically between 25,000 and 160,000 miles per hour.

* Friction: As the meteor races through the air, it encounters intense friction, which heats up the surrounding air molecules and the meteor itself.

* Burning: The friction causes the meteor to glow intensely, sometimes even vaporize completely. This bright streak of light is what we see as a shooting star.

* Perspective: Since we're on the ground, we see the meteor's bright streak as it moves across the sky, giving the impression of a "shooting star."

In short, meteors are tiny particles of space debris that burn up in Earth's atmosphere due to friction, creating the bright streak we call a shooting star.