There has been a long search for sustainable energy sources. One source scientists want to create is nuclear fusion. Scientists have worked for decades on this. Researchers in the USA say they created it for a fraction of a second. Powerful lasers blasted a target to create a reaction that lasted just 100 trillionths of a second. It created 10 quadrillion watts of power. This is the same as 6 per cent of the Sun's energy hitting Earth at any given time.

Nuclear fusion powers the Sun. This energy source could solve our environmental challenges. It could provide endless, safe, clean and green power. A physicist spoke about the breakthrough. She said it is a "huge advance" and a big step toward generating "a net-positive amount of energy". Futurism.com said it was "an infinite supply of carbon-neutral energy without ever running the risk of a nuclear meltdown".