#SupernovaSunday
Supernovae are stellar explosions that are so powerful they briefly outshine entire galaxies, radiating as much energy as the Sun or any ordinary star is expected to emit over its entire life span
The Universe is so vast that it is estimated that a star explodes every second. In a galaxy the size of our Milky Way, a star will go supernova every 50 years on average.
A star can go supernova in one of two ways:Â
Type I supernova: star accumulates matter from a nearby neighbor until a runaway nuclear reaction ignites.Â
Type II supernova: star runs out of nuclear fuel and collapses under its own gravity.
Supernovae play a key role in distributing elements throughout the universe. When the star explodes, it shoots elements and debris into space. Many of the elements we find here on Earth, including life, are made in the core of stars. These elements travel on to form new stars, planets and everything else in the universe.
Supernovae as seen by the Chandra X-Ray Observatory Crab Nebula | Cassiopeia A | Tycho’s Supernova Remnant  | G292.0+1.8



















