Stars are not eternal; they are dying in unimaginably large explosions called supernovas. Second only to the Big Bang, these explosions are where creation and destruction meet. Only now have we begun to understand how these wonders in our sky work. Written by
Did You Know?
Many of the depictions of stars exploding show a planar shock wave (also known as the Praxis effect) expanding from them. In reality, the shock wave would be spherical although asymmetrical shock waves have been observed. See more