The celestial event where stars appear to be flying in a straight line across the night sky is called a meteor shower.

Here's why:

* Meteors: These are small particles of dust and debris that enter Earth's atmosphere at high speeds.

* Friction: The friction between the meteor and the air causes it to heat up and glow, creating a streak of light across the sky.

* Radiant Point: Meteor showers happen when Earth passes through a stream of debris left behind by a comet or asteroid. The meteors appear to radiate from a single point in the sky, called the radiant point.

* Perspective: Because of our perspective on Earth, the meteors appear to be moving in a straight line across the sky even though they are actually traveling in parallel paths.

Let me know if you have any other questions!