- Have you ever wonder what happens when a star Die ?.
- there are tons of different types of stars
- blue giants
- white dwarfs
- red giants
- the sun is considers to be GV2 Main Sequence Yellow Dwarf
- All starts are unbelievably large.
- more than 1 million planet earth could fit inside our sun.
- this giant size causes tremendous gravity that’s constantly trying to come crushing inside the star.
- this push everything the star is made of down towards its core.
- the pressure and density inside a star would be truly unimaginable.
- even microscopic atoms can’t stand this pressure.
- hydrogen the most common atom is everywhere even inside a star.
- the pressure inside a star is so strong that it strips hydrogen its electrons leaving bare nucleus.
- these bare nucleus of hydrogen combine with other bare nuclei fusing together forming more heavy elements like helium or oxygen.
- in physics this is know as nuclear fusion.
- and these heavy elements have tons of extra energy that they are not used to.
- so they release or emit the energy as radiation.
- this radiation spills into space, and some of it becomes the light that hits the planet earth.
- to mention that this powerful energy flowing outwards prevent the start gravity from crushing it.
- a star is always pushing out with nuclear energy and trying to crush in with gravity.
- and this delicate gravity nuclear balance is how stars stays alive.
- but eventually like a car running out of gas, the star runs out of atoms to fuse but there is nothing to stop the gravity.
- As a result everything that the star is made of comes crushing into the core.
- and all of this matter stuffed into a small place becomes a nuclear time-bomb.
- all of the matter and radiation blast out into the universe in a catastrophic explosion known as a SUPERNOVA.
Supernova
This new Hubble image - One among the largest ever produced with the Earth-orbiting observatory - shows gives the most detailed view so far of the entire Crab Nebula ever made. The Crab is arguably the single most interesting object, as well as one of the most studied, in all of astronomy. The image is the largest image ever taken with Hubble's WFPC2 workhorse camera. The Crab Nebula is one of the most intricately structured and highly dynamical objects ever observed. The new Hubble image of the Crab was assembled from 24 individual exposures taken with the NASA/ESA Hubble Space Telescope and is the highest resolution image of the entire Crab Nebula ever made.