What is the biggest energy source of the future?
Iron Man has his arc reactor, the humans in “Avatar” have their unobtanium and what would “Star Trek” be without dilithium crystals? While these energy sources are impressive, they’re also fictional. Humanity will eventually need to transition from a dependence on fossil fuels to other forms of energy, but what are they? And when can we have them? Humanity needs a potent, dependable and sustainable energy source. Our planet already has one in the form of the sun, so it shouldn’t come as a surprise that the biggest energy sources for the future all involve that fiery star. First, there’s the hydrogen fuel cell to consider: a battery that depends on oxygen and pure hydrogen gas and converts chemical energy into electrical energy. The real challenge is obtaining that pure hydrogen gas, but all Earth’s hydrogen
