NASA will send an ice chest-sized box to the International Space Station (ISS) in order to freeze gas atoms which will create the coolest spot in the universe, an advance that may give new insights into gravity and dark matter. Inside that box, lasers, a vacuum chamber and an electromagnetic "knife" will be used to cancel out the energy of gas particles, slowing them until they're almost motionless. The suite of instruments, developed by NASA's Jet Propulsion Laboratory in the US, is called the Cold Atom Laboratory (CAL). It is set to ride to space in August aboard the SpaceX CRS-12. CAL's instruments are designed to freeze gas atoms to a mere billionth of a degree above absolute zero - more than 100 million times colder than the depths of space.

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