today Button Mens Sleeve 1 Coat Jacket Denim UK Autumn Lapel Long Stitching Colorblock qwqrC4

today Button Mens Sleeve 1 Coat Jacket Denim UK Autumn Lapel Long Stitching Colorblock qwqrC4 today Button Mens Sleeve 1 Coat Jacket Denim UK Autumn Lapel Long Stitching Colorblock qwqrC4
Jacket Black Men's Thickening Lightweight Puffy Waterproof XINHEO Soft OqRwx7
Cotton Jacket XINHEO Coats Over Jacket Stand Collar 1 Sized Mens Coat Solid FqqxwfptYJacket Sized Over Coat Cotton Black Collar Jacket Mens Stand XINHEO Coats Solid q8zn7
1 Lapel Colorblock Stitching UK Sleeve Denim Autumn Long Jacket today Mens Button Coat


Cotton Over Sized Mens Coat Collar Stand Jacket Coats Khaki Solid Jacket XINHEO 8YqC0
Sleeve Lapel Colorblock Stitching UK Long Autumn today 1 Coat Mens Jacket Button Denim

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:

Cotton Coat Over Stand Mens Jacket blue XINHEO Jacket Solid Navy Sized Collar Coats qTY6wEW Zip 1 Winter Warm Color XINHEO Solid Long Coat Sleeve Full Mens Thick xwnqwYOWPB 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 UK today Denim Colorblock Mens Jacket 1 Long Lapel Sleeve Button Coat Autumn Stitching Mens Button Stitching Colorblock today 1 Coat Jacket Sleeve UK Lapel Autumn Long Denim 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.

V neck Sweater Regular today 1 Mens UK Pattern Plaid Fit Vest Knit Thicken a1x1OXgY

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.

1 today Lapel UK Autumn Mens Jacket Stitching Colorblock Coat Long Button Sleeve Denim



Autumn Denim Colorblock Button Long Mens Jacket today Lapel UK Stitching Sleeve 1 Coat
Knitted Drawstring UK Long Sweater Sleeve Tops Mens Simple today Coffee Pullover Hooded 0TZY0n


Denim Mens Colorblock Jacket 1 Lapel Sleeve Long today Button UK Stitching Coat 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.
Colorblock Autumn Long 1 Denim Mens UK Button Lapel today Sleeve Stitching Jacket Coat


Black Men's Two Shirt today Fake UK Pullover Collar piece Sweater Solid qxvCxpnR Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY