The death of the Sun

General
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http://www.enchantedlearning.com/sgifs/Sundeath.GIF
The Sun is about 4.5 billion years old. it has used up about half of its nuclear fuel (hydrogen). In about 5 billion years from now, the sun will begin to die.

As the Sun grows old, it will expand. As the core runs out of hydrogen and then helium, the core will contract and the outer layers will expand, cool, and become less bright. It will become a red giant star.

After this phase, the outer layers of the Sun will continue to expand. As this happens, the core will contract; the helium atoms in the core will fuse together, forming carbon atoms and releasing energy. The core will then be stable since the carbon atoms are not further compressible.

http://www.enchantedlearning.com/pgifs/Pistolnebula.GIF
The Pistol nebula: a planetary nebula in Sagittarius.
http://www.enchantedlearning.com/egifs/Eggnebula.GIF
The Egg nebula: a planetary nebula that formed a few hundred years ago.
Then the outer layers of the Sun drift off into space, forming a planetary nebula (a planetary nebula has nothing to do with planets), exposing the core.

Most of its mass will go to the nebula. The remaining Sun will cool and shrink; it will eventually be only a few thousand miles in diameter!

http://www.enchantedlearning.com/wgifs/Whitedwarf.GIF
A White dwarf star: (circled) in the globular cluster M4.
The star is now a white dwarf, a stable star with no nuclear fuel. It radiates its left-over heat for billions of years. When its heat is all dispersed, it will be a cold, dark black dwarf - essentially a dead star (perhaps replete with diamonds, highly compressed carbon).

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[SIZE=6]What will happen when the Sun dies?[/SIZE]
https://i-kinja--img-com.cdn.ampproject.org/ii/w120/s/i.kinja-img.com/gawker-media/image/upload/s--FM2RDKKz--/c_fill,fl_progressive,g_center,h_80,q_80,w_80/18h5l7tf1giagjpg.jpg
Ron Miller
12/27/11 5:45pm
Filed to:COSMOLOGY
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Everything comes to an end, and our sun is no exception. A star happily cooking along in its middle age, Sol has many millions of good years ahead of it — but its eventual doom is certain. Here’s what that will look like.

Like just about anyone else, I like a good cosmic catastrophe…at least when I’m not directly involved. And for an artist, few things are more fun to illustrate. Indeed, I recently did an entire book about the end of the world, largely as an excuse to do the artwork for it. Here, I’ve gone beyond the end of the world. It’s all well and good to speculate on how our planet might get wiped out, but it’s a little more sobering to think that the days remaining to not only the Sun but our entire solar system are numbered…

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About 1.1 billion years from now the sun will begin to grow larger and hotter. The earth’s ice caps will melt and, as the planet grows hotter, the oceans will boil away. Eventually Earth will lose all its water to space. It will be a hot, dry planet.

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3.5 billion years from now, as the sun steadily grows larger and hotter, a now-lifeless earth will resemble the inferno of today’s Venus.

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As the ever-growing sun becomes a huge orange giant star, dominating the sky, the surface of Earth will glow with a red heat and mountains will begin to melt.

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A bloated red giant sun will engulf the orbits of Mercury and Venus. Its tenuous outer atmosphere may even reach the orbit of the earth. Here we see such a sun from the surface of Europa. Its miles-thick crust of ice is thawing under the warmth of a sun more than twenty times larger than the one we’d been used to seeing in earth’s sky.

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Even frigid Pluto now basks under the glow of a sun that had once been a heatless pinpoint and now appears four times larger than the sun once did in Earth’s sky.

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Roughly 12.4 billion years from now, the sun has blown off its outer layers. A shimmering planetary nebula now expands like a soap bubble around the tiny remnant of the sun’s core, seen here from a distant Kuiper Belt Object.

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All that is now left of our star is a white-hot dwarf probably not much larger than the planet Earth had been. It is seen here from the burned-out, lifeless cinder that is the corpse of our world.

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But the solar system hasn’t seen the last of its abuse. The Milky Way and Andromeda galaxies are rushing toward one another on a collision course. As they pass through one another and their spiral arms unwind and the galaxies are distorted beyond recognition, the dwarf sun and its transformed planets may be flung bodily into intergalactic space. At least the view looking back will be spectacular.

https://i-kinja--img-com.cdn.ampproject.org/ii/w1200/s/i.kinja-img.com/gawker-media/image/upload/s--DUblAth3--/c_scale,fl_progressive,q_80,w_800/18lp4rbubxyevjpg.jpg[/I]
Eventually, even the universe itself will come to an end, as all of the energy in the universe is used up. Everything will be at the same temperature and chemical reactions will cease. No work can be done. No information will flow. Even intelligence, thought and imagination will stop. Nothing will ever change. By then, perhaps 1000 billion years in the future, there will be nothing left of the universe but darkness, emptiness and absolute cold.[/I][/I]

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Sounds disturbing. What should we do to save our sun? Ama tuwe tunaizima when going to bed?

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In 1 billion years to come? Wacha nikamue muhindi kwanza kabla hio siku ifike…

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:D:D:D
On Blood Sport, the first time I watched it, van Damme alipigwa na yule Mchina nikashikwa na stroke, hehehee!

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As stars die others are forming the universe can’t die

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Clichy atazaa watoi fifty kabla Jua ikufe

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The universe is so big by that time we would have high technology and better propulsion systems to travel to other stars to look for habitable planets

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Good information but 70 years out of a billion years? It won’t even register on any scale.
Do you know how many stars there are in our Universe - the Milky way?
And how many Universes there are?
Astronomers say the answer is billions to both.
In short, let’s change what we can and learn to live with what we can’t change.

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Shenji! Ha ha ha ha ha!

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I heard them say that humans have a chance of watching the whole spectacle as it unfolds from Jupiter’s moon, Europa. That will be the new biologically habitable zone in Solar System.

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And the process starts all over again

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The earth will exist until God it’s creator decides it won’t anymore. Let your minds not be trouble :slight_smile: .

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Before all this happens, the Red Sea will flow down the Rift Valley and Centro Kenia, NE, Eastern and Coast will be part of a big Madagascar-like island.

I just wish that could happen tomorrow…

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Interesting time to grab land…!

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Europa and saturns moon Enceladus would be our home’s in the future both have water and NASA has a mission dedicated to studying the which would be launched in early 2020’s code named JUICE (jupiter icy moon explorer)

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There will be no human beings left by that time.

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Lie

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:D:D

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When this happens we will either be extinct or we will have evolved to higher beings

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