Coolest experiment of universe

What is the coldest place on earth? The answer will be Antartica, which is having coldest temperature of -85°C. Next question will be, what is the coldest place of universe? It will be dark side of moon, whose temperature is near about -173°C. In NASA’s Cold Atom Lab (CAL), the scientists are creating something like this. 

           The scientists are trying to achieve the absolute zero temperature i.e. -273°C. At this temperature, they will produce clouds of ‘ultracold’ atoms, which will facilitate further researches. But the question arises what is the need to produce ultracold atoms at absolute zero temperature? The answer is to study the quantum physics.. classically.

           Ultracold atoms moves with very lesser speed. This speed is 2 lakh times slower than the speed of atoms at room temperature. This will helps to study atoms and as well as other physical phenomena. This study will helps to understand the workings of nature at the fundamental levels. This experiment will build a foundation of a cold atom science in space.It will make possible to study about the energy, position and momentum accurately at same time. Hence, this will make possible to study quantum at newtonian level.

          The major problem faced by the scientists is that, on the ground, because of the gravitational pull of earth, the ultracold clouds of atom fall off quickly and this gives only a fraction of second to observe them. Magnetic fields can also be used to trap the atoms but this too restricts their natural movement. The only possibility to observe ultracold clouds is to reduce the effect of gravity.