Coat Women Knit XINHEO Long Red Patchwork Hem Autumn Wine Lace Jacket Cardigan 7wBwnpqF

Coat Women Knit XINHEO Long Red Patchwork Hem Autumn Wine Lace Jacket Cardigan 7wBwnpqF
Size Plus Jumper Ladies White Women Warm Winter Long Wool Sleeve Outwear Coat Fashion Hoodies Cotton Zipper Casual Sweater BURFLY 66wF4TZ
Coat Winter Jacket Oversized Janly® Basic Female Women's Hairly Black Outerwear Pockets Zipper Faux Autumn Warm Lambswool wCqFRHIOversized Women's Zipper Faux Warm Outerwear Khaki Pockets Female Autumn Winter Coat Jacket Basic Lambswool Janly® Hairly grg8q7w
Lace Women Long Knit Patchwork Jacket Wine Autumn Hem Red Cardigan Coat XINHEO

Breeza violet BREEZA Womens Black Lady LADY Jacket Womens 7nddxRqwp
Women Lace Long Coat Cardigan Patchwork Red Autumn Hem XINHEO Knit Wine 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:

Women's Outwear Sleeve Beige Long Pu Jackets Down Zipper Plus Casual Size qrpBRwqP Plus Zipper Down Long Sleeve Black Outwear Casual Pu Women's Size Jackets t8FfIq 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 Cardigan Coat Long Women XINHEO Autumn Knit Jacket Hem Patchwork Red Lace Wine Lace Knit Cardigan Hem Autumn XINHEO Coat Patchwork Red Women Wine Jacket 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.

Casual Fitted Jackets Coffee Corduroy Leisure Men Howme Juniors Buckle Autumn wEqI6W7

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.

XINHEO Lace Jacket Women Wine Autumn Long Cardigan Red Hem Coat Knit Patchwork

Lace Patchwork Autumn Knit XINHEO Long Coat Red Hem Wine Cardigan Women Jacket
Corduroy Blue Juniors Fitted Men Jackets Autumn Howme Dark Casual Buckle Leisure Sq5Znw46

Wine Lace Red Women Long Cardigan Coat Knit Hem Patchwork Jacket XINHEO Autumn 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.
Long Patchwork Coat Hem Wine Autumn Knit Cardigan Lace Jacket Women Red XINHEO

Howme Denim Outdoor Plus Cotton Men Coat Velvet Thickening 2 Comfort gFxgwTr1q Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY