Stars are not actually shaped like the pointy five-pointed stars we draw. They are spherical!

Here's why:

* Gravity: Stars are massive balls of gas held together by their own gravity. Gravity pulls equally in all directions, resulting in a perfectly round shape.

* Gas pressure: The intense heat and pressure within a star create an outward push that counteracts gravity. This outward push is also uniform in all directions.

While stars are spherical, they can appear to have a different shape from Earth due to:

* Perspective: Stars are so far away that we only see a tiny part of their surface.

* Distortion by the atmosphere: The Earth's atmosphere can bend light from stars, making them appear to twinkle and shimmer.

So, the next time you look up at a star, remember that it's actually a giant, glowing ball!