Supernovae in the Sky: Stars That Outshine Galaxies

A supernova is the explosive death of a massive star or a white dwarf gone unstable.
For a short time, a single supernova can outshine an entire galaxy.
They release more energy in seconds than our Sun will in its entire lifetime.
The shockwaves scatter heavy elements like iron, gold, and uranium into space.
These explosions help seed future stars, planets, and even life itself.
Famous historical supernovae include SN 1054, which created the Crab Nebula.
In 1987, Supernova 1987A became the brightest observed in modern times.
Some supernovae serve as “standard candles” to measure cosmic distances.
They can trigger the birth of new stars in surrounding gas clouds.
Supernovae remind us that stellar death is also a force of cosmic creation.