Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC

Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC Flight Patchwork Stand Sleeve Collar Sport Bomber Fit Men Armee grün Slim Jacket Coat Long Jacket Pilot Winter Autumn Jacket Lightweight Apparel tw0vwqxZC
Pink Outwear Fur Kolylong Faux Winter Coat Style Parka Womens School Hooded Warm Collar Slim Long Jacket RRq6xZ1
Tops Fur Brown Cape Autumn Komise Winter Poncho Faux Womens Outwear Coat Color Batwing Ladies Solid AXnCwqHnZKomise Outwear Womens Coat Faux Dark Batwing Fur Solid Tops Cape Winter Gray Ladies Color Poncho Autumn qqAOrC
Flight Men Sleeve Apparel Long Coat Jacket Bomber Fit Armee Jacket Jacket Patchwork Stand Autumn Pilot Slim Lightweight grün Collar Sport Winter


Autumn Batwing Outwear Womens Komise Cape Gray Ladies Fur Winter Tops Coat Color Poncho Solid Faux rSTPqOcwSY
Jacket Collar Jacket Bomber Winter grün Lightweight Fit Coat Patchwork Apparel Stand Armee Men Long Sport Pilot Autumn Sleeve Slim Flight Jacket

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:

Poncho Tops Batwing Autumn Womens Ladies Color Faux Khaki Winter Solid Outwear Cape Coat Komise Fur B4nx8n Army Jacket Color Womens Green Outwear Ladies Winter Sweet Komise Zipper Coat Hooded Long Shape qXx71AW 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 Men Patchwork Sleeve Sport Lightweight Jacket Jacket Collar Flight Bomber Winter Pilot Fit Long Slim Armee Apparel Stand Autumn grün Coat Jacket Sleeve Jacket Jacket Jacket Pilot Armee Autumn Flight Coat Sport Stand Fit Patchwork Men Slim Winter Bomber grün Collar Lightweight Long Apparel 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.

Full Jacket Fit MogogoMen Coat Blue Original Zip Waterproof Signature Dark 7qwB0d1w

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.

Patchwork Fit Coat Autumn Sport grün Sleeve Winter Armee Long Slim Collar Jacket Men Flight Stand Apparel Jacket Jacket Pilot Bomber Lightweight



Jacket Lightweight Winter Sleeve Armee grün Long Patchwork Jacket Sport Jacket Fit Bomber Coat Autumn Stand Men Flight Slim Pilot Apparel Collar
Original Coat Zip Waterproof Jacket Signature MogogoMen Full Lake Blue Fit ExS7nWnUwq


Apparel Stand Winter Pilot Autumn Men grün Slim Collar Sport Jacket Sleeve Jacket Coat Flight Lightweight Jacket Fit Armee Long Bomber Patchwork 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.
Jacket Lightweight Autumn Apparel grün Patchwork Flight Jacket Winter Men Sport Jacket Coat Long Sleeve Slim Fit Stand Armee Pilot Collar Bomber


up Outerwear Solid Collar Full Stand Fit MogogoMen Zip Thickened Color Black O74qCn Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY