What are the signs of a supernova?

What are the signs of a supernova?

Supernovae often exhibit several signs, including a sudden increase in brightness, the formation of a nebula, and specific light spectra.

How can astronomers detect these signs?

Astronomers use telescopes to observe changes in brightness and analyze light spectra to identify elements present in the explosion.

Are there different types of supernovae?

Yes, there are two main types: Type I, which occurs in binary systems, and Type II, which results from the collapse of massive stars.

What happens after a supernova occurs?

After a supernova, the core may become a neutron star or black hole, and the outer layers disperse, enriching the surrounding space with elements.

Can supernovae be dangerous to Earth?

While supernovae are incredibly powerful, the nearest known supernova is far enough away that it poses no threat to Earth.