SOLAR SYSTEM

Detailed explanation-1: -Depending on their mass, stars undergo complicated cycles of birth and death and now, scientists think, rebirth. Over the course of the last century, astronomers have discovered that some “born-again” stars experience a short second lease of life.

Detailed explanation-2: -In 185 AD, they were the first to observe and write about a supernova, now known as the SN 185. The brightest stellar event in recorded history was the SN 1006 supernova, which was observed in 1006 and written about by the Egyptian astronomer Ali ibn Ridwan and several Chinese astronomers.

Detailed explanation-3: -The expanding supernova remnant, rich with heavy elements, including mass injected by the now-dead star’s giant and supergiant winds, finds its way back to the interstellar clouds. Its detritus becomes the material that will ultimately make new stars, thus completing the cycle.

Detailed explanation-4: -Stars do explode, and when that happens they’re known as supernovae. A supernova creates an explosion billions of times brighter than our sun, with enough energy to outshine its own galaxy for weeks.