the

If we pour water on the sun with a bucket as big as the sun will the sun be extinguished?

the

Nuclear fusion powers the sun. The quantity of energy emitted will instantly break water molecules (H20) into hydrogen and oxygen atoms.

the

Hydrogen powers the sun. A bucket of water contains loads of hydrogen. Instead of extinguishing it, you add fuel. Then what?

the

The sun will burn more furiously! The bucket's gone, the sun's mass and fuel have doubled! The sun is on fire!

the

Water can't extinguish the sun. Even if the water is 100 times the sun's mass, when they merge... 

the

...THE MASS AND GRAVITY WILL BE SO TREMENDOUS THAT NUCLEAR FUSION WILL OCCUR MORE RAPIDLY. YOU'LL FAIL HARDER.