Answer:
It is weightless, you can see it. If you put it in a barrel it will make it lighter?
I'm a god. I'm a planet. I measure heat.
I am always hungry, I must always be fed. The finger I lick will soon turn red.
A house full, a yard full, a chimney full, no one can get a spoonful.
More precious than gold, but cannot be bought, Can never be sold, only earned if itβs sought, If it is broken it can still be mended, At birth it canβt start nor by death is it ended.
You can always find me in the past. I am created in the present, but the future can not change me. What am I?