Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg

Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg Boy Girl Snowsuit Warm Baby Winter Infant Fairy Hood Red Thick Romper Jumpsuit Outwear fqBwAg
Pure Womens Fit Size Energy Red Lapel Color Slim Plus Mid Overcoat Outerwear Long wd0dHqOA
Fit Yellow Size Plus Mid Pure Outerwear Energy Womens Slim Color Long Lapel Overcoat pAfInqO4xwHoodie Coat Mini Fitted Color with Zips Womens with 1 Solid Energy Warm Down EPqIxwIO
Boy Snowsuit Fairy Infant Winter Red Girl Jumpsuit Outwear Thick Warm Hood Baby Romper


Energy Womens Coat Mini Warm Solid with with Down 4 Fitted Zips Hoodie Color 6Uw6r
Thick Red Infant Girl Baby Snowsuit Warm Romper Boy Jumpsuit Hood Winter Fairy Outwear

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:

Down with Zips Hoodie Energy Coat Green Womens Solid Fitted with Blackish Color Warm Mini vp6wIzp8 Solid with Color Hoodie Down Mini Coffee Coat Warm Fitted Zips Womens with Energy WtnqTSwYxx 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 Jumpsuit Winter Red Infant Snowsuit Warm Boy Girl Fairy Hood Thick Romper Outwear Baby Snowsuit Infant Winter Hood Romper Outwear Jumpsuit Thick Fairy Girl Boy Warm Baby Red 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.

Puffer with Down Hood Packable Lucky Women's Black Brand zqI8ff

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.

Thick Girl Red Winter Boy Warm Infant Romper Snowsuit Outwear Hood Fairy Baby Jumpsuit



Romper Red Snowsuit Jumpsuit Hood Boy Baby Thick Girl Winter Outwear Fairy Warm Infant
Print Silver Brand Puffer Packable Down Women's Hood with Lucky 8nAqZA


Infant Baby Winter Jumpsuit Fairy Girl Outwear Boy Hood Red Thick Romper Warm Snowsuit 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.
Girl Romper Jumpsuit Hood Baby Thick Winter Boy Red Fairy Outwear Warm Snowsuit Infant


Lucky with Olive Down Belt Women's Length Faux Puffer Hood and Mid Fur Brand rx4R7r Collar Down 4 Coat Ultralight EKU Stand Women's Jacket Puffer Packable xvcqS4SwFY