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Physics

Pursuing fusion power

Scientists have been chasing the dream of harnessing the reactions that power the Sun since the dawn of the atomic era. Interest, and investment, in the carbon-free energy source is heating up.

The ‘least crazy’ idea: Early dark energy could solve a cosmological conundrum

Measurements of the acceleration of the universe don’t agree, stumping physicists working to understand the cosmic past and future. A new proposal seeks to better align these estimates — and is likely testable.

Quantum entanglement’s long journey from ‘spooky’ to law of nature

PODCAST: From Einstein’s initial disbelief and Bell’s test to the 2022 Nobel Prizes, quantum entanglement has matured into a pillar of physics. Physicist Nicolas Gisin explains why it took so many decades.

Probing the mysteries of neutron stars with a surprising earthly analog

Ultracold gases in the lab could help scientists to better understand the universe

Champagne bubbles: the science

As you uncork that bottle and raise your glass, take time to toast physics and chemistry along with the New Year

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