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Fusion milestone - the science behind the headlines.
Laser fusion expert Kate Lancaster walks us through the technology that produced energy gain at the US's National Ignition Facility NIF

Whirlwinds on Mars
What the sounds of a dust devil passing over NASA's Mars Perseverance Rover tells us about the Martian atmosphere

75 years of the transistor electronics revolution - where next for Moore's Law?
December 16th 1947 was the day the first ever transistor device passed an electrical current. Trillions are made every day these days, powering our interconnected world. Roland recalls meeting some of the pioneers for the 50th anniversary, including Gordon Moore, and hears from Berkeley Dean of engineering Tsu-Jae King Liu how the revolution will continue for another 25 years.