Humankind has long gazed up into the sky, marveled at the sun and dreamed to wield its colossal power.

Now, it might sound ridiculous but we have actually known how to do it for some time.

But it is only now that we may be in a position to act and harness the incredible potential of nuclear fusion, thus embarking on an age of clean, sustainable, and safe energy production.

So, how does it work?

Ian Chapman is Chief Executive Officer at the UK Atomic Energy Authority