0
votes
0answers
33 views

Why does the sun have its magnetic field [closed]

I get the point that earth has its magnetic field because of the iron and metal in its core. However, why does the sun have its magnetic field if there are only hydrogen?
79
votes
8answers
11k views

Why does the Sun's (or other stars') nuclear reaction not use up all its “fuel” immediately?

The temperature and pressure everywhere inside the Sun reach the critical point to start nuclear reactions - there is no reason for it to take such a long time to complete the reaction process. Just ...
0
votes
3answers
114 views

Is the solar energy Infinite?

Is the solar energy coming from the sun infinite and will continue to be radiated to our earth forever? (discarding any outer factors) what's the sun's fuel?
12
votes
2answers
366 views

Hydrogen as a fuel in Sun

The source of Sun's incessant energy is hydrogen; which is continuously converting to helium through nuclear fusion reaction releasing energy. Why does not all hydrogen convert into helium in one big ...