A fusion reactor promises almost limitless energy—if we can build it. Physicist Tammy Ma explains how her team achieved fusion ignition, a crucial milestone powered by the world's largest laser.

Samsung Galaxy C5 The phone comes with a 5.20-inch touchscreen display offering a resolution of 1080x1920 pixels. Samsung Galaxy C5 is powered by a 1.2GHz octa-core Qualcomm Snapdragon 617 processor.

However, the trade-off for all of this comfort is a complete lack of any driver engagement, and the C5 Aircross’s budget-friendly nature is rather obvious when sitting inside it, because the ...

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