SuperTIGER on its second prowl – 130,000 feet above Antarctica

The Super Trans-Iron Galactic Element Recorder (SuperTIGER) instrument is used to study the origin of cosmic rays. (Photo: Wolfgang Zober)

A balloon-borne scientific instrument designed to study the origin of cosmic rays is taking its second turn high above the continent of Antarctica three and a half weeks after its launch.

SuperTIGER (Super Trans-Iron Galactic Element Recorder) is designed to measure the rare, heavy elements in cosmic rays that hold clues about their origins outside of the solar system. The effort is a collaboration among Washington University in St. Louis, Goddard Space Flight Center, California Institute of Technology Jet Propulsion Laboratory and the University of Minnesota.

The longer the balloon and instrument are up, the better...

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Molecular Switch for Repairing Central Nervous System disorders

regenerative medicine researcher pipetting stem cells
A molecular switch has the ability to turn on a substance in animals that repairs neurological damage in disorders such as multiple sclerosis (MS)Mayo Clinic researchers discovered. The early research in animal models could advance an already approved Food and Drug Administration therapy and also could lead to new strategies for treating diseases of the central nervous system.

A molecular switch has the ability to turn on a substance in animals that repairs neurological damage in disorders such as multiple sclerosis (MS), Mayo Clinic researchers discovered. The early research in animal models could advance an already approved Food and Drug Administration therapy and also could lead to new strategies for treating diseases of the central nervous system.

Research by Isobel Scarisbr...

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‘Superdiamond’ carbon-boron cages can trap and tap into different properties

The bipartite sodalite type clathrate structure, which consists of truncated octahedral “host” cages that trap strontium “guest” atoms, was synthesized under high-pressure and high-temperature conditions using a laser heating technique. Image is courtesy of Tim Strobel.

A long-sought-after class of “superdiamond” carbon-based materials with tunable mechanical and electronic properties was predicted and synthesized by Carnegie’s Li Zhu and Timothy Strobel. Their work is published by Science Advances.

Carbon is the fourth-most-abundant element in the universe and is fundamental to life as we know it. It is unrivaled in its ability to form stable structures, both alone and with other elements.

A material’s properties are determined by how its atoms are bonded and the structural ar...

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Experiment on Beta-decay sheds light on Fate of Intermediate-mass Stars

Picture: X-ray: NASA/CXC/NCSU/M. Burkey et al.; Optical: DSS

A group of scientists, among them several from GSI Helmholtzzentrum für Schwerionenforschung and from Technical University of Darmstadt, succeeded to experimentally determine characteristics of nuclear processes in matter ten million times denser and 25 times hotter than the centre of our Sun. A result of the measurement is that intermediate-mass stars are very likely to explode, and not, as assumed until now, collapse. The findings are now published in the scientific magazine Physical Review Letters. They stress the fascinating opportunities offered by future accelerator facilities like FAIR in understanding the processes defining the evolution of the Universe.

Stars have different evolutionary paths depending on their...

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