It is postulated that towards the end of its life cycle, the sun will become a red giant, which will consume several of the inner planets, possible including the earth. Even if the diameter of the sun does not expand to the point where the earth is consumed, the increased heat and radiation due to the sun's closer proximity will exterminate life on earth. Eventually, the sun will collapse into a white dwarf.
At first, the sun will soon run out of its primary fuel, hydrogen. This will cause the sun's layers to expand, becoming a red giant. This will likely happen in 5 billion years. While scientists are unsure whether the expanded the sun will engulf the Earth or not, it will likely end life on Earth nonetheless.After it runs out of all fuel, including the heavier elements, it will begin shedding its outer layers and become a planetary nebula. Life on Earth would've almost certainly ceased by then.
The first stage is jettisoned, to fall back to earth, as the fuel runs out.
When the sun runs out of fuel for fusion, it will expand into a red giant, shedding its outer layers into space, before eventually collapsing into a white dwarf. This process will take several billion years to occur.
The fuel for stars is primarily hydrogen, which undergoes nuclear fusion in their cores to form helium. This fusion process releases energy in the form of light and heat, which is what allows stars to shine and maintain their brightness over millions to billions of years.
The form of the question seems to presuppose a "purpose" and scientifically the sun has no "purpose". But if you want to ask what processes are under way in the sun then you should ask that question. (Thermonuclear fusion of Hydrogen into Helium is the primary process). If on the other hand you wanted to ask what "effect" the sun has on the surrounding space, you should ask that question. (The sun heats up the surrounding space and material generated in the fusion processes are expelled)
Yes, but it is a long way off
At first, the sun will soon run out of its primary fuel, hydrogen. This will cause the sun's layers to expand, becoming a red giant. This will likely happen in 5 billion years. While scientists are unsure whether the expanded the sun will engulf the Earth or not, it will likely end life on Earth nonetheless.After it runs out of all fuel, including the heavier elements, it will begin shedding its outer layers and become a planetary nebula. Life on Earth would've almost certainly ceased by then.
The 2014 Ford Fusion runs on regular unleaded.
The 2008 Ford Fusion runs on regular unleaded.
The 2010 Ford Fusion runs on regular unleaded.
The 2007 Ford Fusion runs on regular unleaded.
The 2013 Ford Fusion runs on regular unleaded.
The 2011 Ford Fusion runs on regular unleaded.
The 2009 Ford Fusion runs on regular unleaded.
The 2006 Ford Fusion runs on regular unleaded.
The 2012 Ford Fusion runs on regular unleaded.
The 2011 Ford Fusion-Hybrid runs on regular unleaded.