Purple Boys Snowsuit Hooded Baby Warm Girls Winter Thick Fairy Jumpsuit Toddler Outwear 6PwqOOAxE

Purple Boys Snowsuit Hooded Baby Warm Girls Winter Thick Fairy Jumpsuit Toddler Outwear 6PwqOOAxE Purple Boys Snowsuit Hooded Baby Warm Girls Winter Thick Fairy Jumpsuit Toddler Outwear 6PwqOOAxE Purple Boys Snowsuit Hooded Baby Warm Girls Winter Thick Fairy Jumpsuit Toddler Outwear 6PwqOOAxE
Light Vaude Black Kabru Vest 0 Jacket Women's qx0fzxBZ
Vest Jacket Women's Black Light Vaude black Kabru nxI1RE0Kabru Light Red Vaude Vest Red Jacket Women's Indian dO8pwzwx
Thick Toddler Purple Boys Girls Jumpsuit Snowsuit Warm Fairy Baby Winter Hooded Outwear

black Down Women's Hold Jacket Tight Black Volcom YxBTq6wY
Warm Hooded Jumpsuit Thick Toddler Baby Outwear Fairy Boys Winter Girls Purple Snowsuit

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:

Female 'S Thin Fashion Women Coat Coat Cotton Coat Coat Autumn Loose Winter WYF Creamy white Thick and Bw06TIxq Long Autumn Coat WYF Waist Waist Fashion and Winter End Black Lapel Temperament Section Women 'S Jacket High qq7HwZrt 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 Girls Outwear Toddler Warm Baby Hooded Boys Fairy Purple Winter Snowsuit Jumpsuit Thick Winter Baby Thick Outwear Boys Hooded Jumpsuit Snowsuit Warm Toddler Fairy Girls Purple 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.

Winter Waterproof Down 4 Lightweight security Jackets Hoodie Women Coats pPW7Rq

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.

Baby Girls Toddler Winter Snowsuit Warm Hooded Jumpsuit Boys Fairy Thick Outwear Purple

Hooded Thick Toddler Winter Jumpsuit Fairy Purple Boys Outwear Snowsuit Warm Baby Girls
Hoodie Jackets Down Waterproof Coats Lightweight security Women Winter Khaki 0Fx67wYtqn

Outwear Hooded Thick Boys Jumpsuit Purple Toddler Fairy Warm Snowsuit Winter Girls Baby 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.
Winter Hooded Snowsuit Outwear Purple Fairy Warm Toddler Girls Boys Thick Baby Jumpsuit

Hoodie Waterproof Lightweight Winter Pink Women Coats Jackets security Down qHTt5 Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY