supernovajäännöksinä
Supernovajäännöksinä, meaning supernova remnant in Finnish, refers to the expanding structure of gas and dust created by the explosion of a star. When a massive star exhausts its nuclear fuel, it can undergo a catastrophic event known as a supernova. This explosion ejects the star's outer layers into space at incredibly high speeds, forming a shock wave. This shock wave then interacts with the surrounding interstellar medium, heating it and causing it to glow. Supernova remnants are therefore visible signs of past stellar explosions.
These remnants are crucial for understanding stellar evolution and the enrichment of the universe with heavy