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LiveScience
LiveScience
Ben Turner

Science news this week: Time emerges inside a mini-universe, scientists thicken Arctic ice, and one of the oldest graves of a free Black person in the US found

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On the left a sphere filled with swirling purple gas, on the right a child walks across a snowy landscape.

This week's science news was filled with big discoveries from the world of the small, led by a physicist's creation of a mini-universe, which was designed so we can watch time emerge from within an isolated quantum system.

The experiment was performed using a Bose-Einstein condensate — a strange state of matter that consists of thousands of atoms blended into a single quantum object at near absolute zero (minus 273.15 degrees Celsius, or minus 459.67 degrees Fahrenheit). The system showed time speeding up, slowing down and even stopping, depending on what the system was doing.

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