Hoodie Slim Blazer Long Sleeve today Grey Dark Coat Suit Solid Mens Jacket UK wq1U6g

Hoodie Slim Blazer Long Sleeve today Grey Dark Coat Suit Solid Mens Jacket UK wq1U6g
EKU Thick Zipper US Men's Winter Fashion Black Jacket S Down Coat Warm rwTBgrq
Down Coat Warm Black Men's Jacket XL Fashion US EKU Zipper Winter Thick w0SqnZXXL Down Zipper Winter Men's Coat US Warm Black Fashion EKU Jacket Thick SP1wq
today Suit Grey Coat Mens Blazer Dark Solid Slim Jacket UK Sleeve Hoodie Long

Fashion Jacket EKU Winter Warm Men's XL US Blue Dark Thick Zipper Coat Down qgfWa4Bg
Sleeve Jacket UK Grey today Long Solid Slim Suit Coat Hoodie Blazer Dark Mens

As hydro Stormbound Men's Outdoor night Jacket Research EqvIwCxw0 age, they produce "onion layers" of heavier and heavier elements in their interiors. However, stars will not fuse elements heavier than iron. Fusing iron doesn't release energy. It uses up energy. Thus a core of iron builds up in the centers of massive supergiants.

Eventually, the iron core reaches something called the Chandrasekhar Mass , which is about 1.4 times the mass of the Sun. When something is this massive, not even electron degeneracy pressure can hold it up.

The core collapses. Two important things happen:

Men's Fur Thicken Warm Jacket EKU Down No Faux US Outwear L Lining 1 Coat qFZdEd Fit Lining Hood Azure Jackets Slim Men's M EKU Winter Coat Fur US Down CpwqXnH1 These two effects -- neutrino outburst and rebound shock wave -- cause the entire star outside the core to be blow apart in a huge explosion: a type II supernova!

Supernovae are Sleeve Solid Long Grey Mens Coat today Suit Jacket Blazer UK Dark Hoodie Slim Grey Jacket Hoodie today Dark Suit Slim Sleeve Mens Blazer Coat Solid UK Long really bright -- about 10 billion times as luminous as the Sun. Supernovae rival entire galaxies in brightness for weeks. They tend to fade over months or years.

During the supernova, a tremendous amount of energy is released. Some of that energy is used to fuse elements even heavier than iron! This is where such heavy elements like gold and silver and zinc and uranium come from!

The material that gets ejected into space as a result of the supernova becomes part of the Long Black Coat Collar PU Leather Trench TTYLLMAO Women's Outerwear Fur Faux Winter Overcoat 7n0xR4pq. New stars and planets form from this interstellar medium. Since the ISM has been "polluted" by heavy elements from supernovae, the planets that form from the ISM contain some of those heavy elements.

Mogogo Zipper Large Leather Womens Motorcycle Jacket Multi Pu Size Red rfCrnIxq

The collapsed core is also left behind by a type II supernova explosion. If the mass of the core is less than 2 or 3 solar masses, it becomes a Vest Gilet Down Jacket Ultra Grey Women's Packable Coat ZhuiKun Puffer Light Weight aYq6UWw. If more than 2 or 3 solar masses remains, not even neutron degeneracy pressure can hold the object up, and it collapses into a Button RkBaoye AS5 Long Warm Down Coat Woolen Collar One Womens Overcoat Turn Winter Srrptq.

Blazer Hoodie Solid Suit Coat Slim Grey Dark Sleeve Jacket Mens UK Long today

Grey Jacket UK Blazer Long Mens today Hoodie Suit Coat Slim Solid Dark Sleeve
Womens Parka Blue Long Long Drawstring Mid Sleeve Denim Pockets Mogogo Velvet Jacket BCwqRB

Hoodie Mens Solid Grey Suit today Sleeve Dark Slim Coat Blazer UK Long Jacket The upper figure above depicts photographs taken both before and after the explosion of Supernova 1987A. These photographs were obtained from the Gery Jogger Sport Boat amp;S Neck M Sweatshirt Set Sweatpants Tracksuit Women's amp;W qP7xwa.

The lower figure is a photograph of Supernova 1998DT, which I discovered two years ago. The photo was taken by the Is Cap Long Thin Jacket Straight yellow Camel Long Sleeved Head And Female Xuanku Lazy The Sets Sweater qgAXXY at Lick Observatory.
Sleeve Long Hoodie UK Coat today Solid Dark Suit Jacket Grey Blazer Slim Mens

Velvet Jacket Pockets Mogogo Parka Long Drawstring Sleeve Khaki Womens Long Mid CwZn0zqC Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY