In March 2018, researchers launched what looks like a white, cooler-sized fridge to the International Space Station. That heavy box houses a $100 million facility known as the Cold Atom Laboratory, which enables an array of atomic physics experiments to be done at freezing temperatures in the zero-g of space. With those unique conditions, scientists have now produced tiny bubbles of extremely cold gas atoms, putting them on the edge of quantum physics territory.
That achievement, only possible in microgravity and at a millionth of a degree above absolute zero, the minimum temperature of the universe, would’ve been impossible to accomplish on Earth. The team of physicists behind the milestone,
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