Associate professor Matthew Hole from the Australian National University told ABC: "It's certainly a significant step for China's nuclear fusion program and an important development for the whole world".
Our sun generates light and heat energy by a process called nuclear fusion, that's when two hydrogen nuclei combine to produce huge amount of energy; and if we could find a way to harness it, we would have a near-limitless source of clean energy. The fusion reactors would create more power while producing less risky waste.
Scientists are hoping that at 100 million degrees Celsius they would be able to start a fusion reaction.
"It provides a silver bullet energy solution, providing that one can harness it". If this happens and the plasma touches the reactor wall, it can easily damage it. However, this sun won't be launched up in the skies, instead is a experiment for nuclear fusion.
Scientists contained the plasma in a round, 400-ton machine known as the Experimental Advanced Superconducting Tokamak, or EAST. Scientists at Google and the Massachusetts Institute of Technology (MIT) are now working on their own nuclear fusion projects as well.
The artificial sun was designed and constructed by China back in 2006. Last year, they said they had managed to suspend plasma in a stable state for over 100 seconds-a world record for this achievement.
The temperature at the core of the sun is said to be about 15 million degrees Celsius, making the plasma in China's "artificial sun" more than six times hotter than the original.
While generating plasma at such high temperatures, there are still many milestones that will need to be overcome before fusion becomes a reliable source of energy.
Nevertheless, the race to build a fusion reactor is hotting up, with numerous companies now devoting resources towards developing a successful method.