What makes stars twinkle at night

What makes stars twinkle at night?

If you look up at the stars in the night sky perhaps you have noticed that they seem to twinkle. This is caused by a substance in the air between the star and the Earth. The unsteady air bends the light from the star, and then it seems to twinkle. It is now believed that hydrogen atoms in the very core of the star burn to form helium. When this…

You must be logged in to view this content.