In other words, the gravitational collapse ... radiation pressure from the fusion reactions. The Sun is expected to be a main sequence star for billions of years.

And, in fact, if our sun were a different size, color, and temperature ... a series of sunsets where he replaced our sun with other stars. In the images below, Vargic used what we know about ...

Learn how different types of stars form, live, explode, and then form again.

Astronomers have discovered an Earth-size ... stars, whose tiny size makes it easier for telescopes to detect orbiting ...

When they reach the end of their long evolutions, smaller stars—those up to eight times as massive as our own sun—typically become white dwarfs. These ancient stars are incredibly dense.