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The private spaceflight firm SpaceX will try to build the world's first completely reusable rocket and spaceship, a space travel method that could open the gates of Mars for humanity, the company's milionaire CEO Elon Musk announced Thursday (Sept. 29).

(PhysOrg.com) -- Scientists of the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, have reached a milestone in the exploration of quantum gas mixtures. In an international first, the research group led by Rudolf Grimm and Florian Schreck has succeeded in producing controlled strong interactions between two fermionic elements - lithium-6 and potassium-40.