When the pressure drops low enough in a massive star, gravity suddenly takes over and the star collapses in just seconds. This collapse produces the explosion we call a supernova. … When stars are especially large, the core collapses into a black hole. Otherwise, the core becomes an ultra-dense neutron star.

Will we see a supernova in 2022?

This is exciting space news and worth sharing with more sky watch enthusiasts. In 2022—only a few years from now—an odd type of exploding star called a red nova will appear in our skies in 2022. This will be the first naked eye nova in decades.

When was the last Red Nova?

The latest known red nova was V1309 Scorpii, a double-star system that unexpectedly merged and detonated in 2008.