US scientists achieve net energy gain for second time in nuclear fusion reaction

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🗞️ Driving the news: U.S. scientists at the Lawrence Livermore National Laboratory have achieved net energy gain in a nuclear fusion reaction for the second time
• This significant development took place at the National Ignition Facility on July 30, producing a higher energy yield than the historic breakthrough achieved in December of the previous year

🔭 The context: Nuclear fusion, combining light elements to release immense energy, achieved its first net energy gain in December
• This milestone briefly reached fusion ignition, creating more energy than was used to start the process, marking a significant step towards a safe and clean energy source

🌎 Why does it matter for the planet: Fusion energy presents a remarkable prospect for clean power, as the reactions don't release greenhouse gases or radioactive waste byproducts
• A single kilogram of fusion fuel could provide as much energy as 10 million kilograms of fossil fuel

⏭️ What's next: Despite these breakthroughs, scientists warn that the technology is far from ready for viable power plants and is not an immediate solution to the climate crisis
• However, the advancements are considered promising evidence that the power of stars might one day be harnessed on Earth for energy purposes

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