In about 5 billion years, it will enter a red giant phase, its outer layers expanding as the hydrogen fuel in the core is consumed and the core contracts and heats up
See link for pictorial
It will run out of hydrogen fuel eventually, so will die. Not for a few billion years yet though scientist reckon.
Quite simply, the Sun does not have unlimited fuel.
The sun i approximately 4.57 billion years old and it burned half it's fuel. So it will take approximately another 4.5 billion years for it to run out of fuel completely.
"Never" is a big word... The Sun has shone for a long time, and it will continue shining for a long time, but it will eventually run out of fuel."Never" is a big word... The Sun has shone for a long time, and it will continue shining for a long time, but it will eventually run out of fuel."Never" is a big word... The Sun has shone for a long time, and it will continue shining for a long time, but it will eventually run out of fuel."Never" is a big word... The Sun has shone for a long time, and it will continue shining for a long time, but it will eventually run out of fuel.
one problem with fuel cell cars is that if they run on solar energy then if theres no sun that day it won't have the power to reverse it into energy and run the car with the sun energy needed!
We don't need to estimate it, we can measure it (at least the surface temperature) using the cavity radiation equation and experimental observation of the solar spectrum.
No, the sun will not shine forever. The sun is a star that will eventually run out of fuel and expand into a red giant before collapsing into a white dwarf. This process will last billions of years, but eventually the sun will no longer be able to sustain nuclear fusion and will fade away.
It is because it collapses after it has run out of "fuel".
The energy source in this case is the Sun. Yes, the Sun will run out of fuel eventually, but it is expected to continue shining for about 5 billion years or so.
When they run out of fuel they collapse and become black holes.
Scientists estimate that the sun will run out of fuel and expand into a red giant in about 5 billion years. After this stage, it will shed its outer layers and eventually become a white dwarf, leaving behind a planetary nebula.
None, they are cute toys that run on the sun's power.