Saturday Citations: 100-year-old milk, hot qubits and another banger from the Event Horizon Telescope project

Is the milk sold today similar to the milk available 100 years ago? Here, drink this and give me your results. Also, physicists achieve superconductivity at a temperature slightly higher than 0 degrees Kelvin and slightly lower than 2 degrees Kelvin. The Event Horizon Telescope project released a glamorous new portrait of Sagittarius A*, while a separate group of physicists reported on a pair of black hole pals.

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