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Last week, physicist Brian Cox showed us why everything that could happen does happen in a riveting tour of the quantum universe. In this fascinating short excerpt from BBC's A Night With The Stars, Cox turns to the Pauli exclusion principle - a quantum mechanics theorem holding that no two identical particles may occupy the same quantum state simultaneously - to explain why everything is connected to everything else, an idea at once utterly mind-bending and utterly intuitive, found everywhere from the most ancient Buddhist scripts to the most cutting-edge research in biology and social science.

"It may sound less likely than hell freezing over, but physicists have created an atomic gas with a sub-absolute-zero temperature for the first time. Their technique opens the door to generating negative-Kelvin materials and new quantum devices, and it could even help to solve a cosmological mystery."

A real-world demonstration of a thought experiment conducted at the University of Vienna, has produced a result that is somewhat befuddling to people with what the lead researcher calls a "naïve classical world view." Two pairs of particles are either quantum-entangled or not. One person makes the decision as to whether to entangle them or not, and another pair of people measure the particles to see whether they're entangled or not.

In a controversial paper in Nature Physics, theorists claim they can prove that wavefunctions - the entity that determines the probability of different outcomes of measurements on quantum-mechanical particles - are real states.

VANCOUVER, British Columbia - Our digital age is all about bits, those precise ones and zeros that are the stuff of modern computer code. But a powerful new type of computer that is about to be commercially deployed by a major American military contractor is taking computing into the strange, subatomic realm of quantum mechanics. In that infinitesimal neighborhood, common sense logic no longer seems to apply. A one can be a one, or it can be a one and a zero and everything in between - all at the same time.

One of the enabling technologies for a quantum internet is the ability to store and retrieve quantum information in a reliable and repeatable way.  One of the more promising ways to do this involves photons and tiny clouds of rubidium gas. Rubidium atoms have an interesting property in that a magnetic field causes their electronic energy levels to split, creating a multitude of new levels. Switching the field off, returns the atoms to their normal state.

A debate that has gone on for millennia has flared up again in recent years Is the fact you are reading this story a decision you arrived at it by your own free choice, or was your interest programmed into the universe from the moment of the big bang? What makes free will such a fun topic is not only that it dives deep into physics, neuroscience, and philosophy, but also that we all feel we have a direct stake in the answers.

The smallest transistor ever built has been created using a single phosphorous atom by an international team of researchers at the University of New South Wales, Purdue University and the University of Melbourne.