Gamma rays detected from galaxy halfway across the visible universe

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In April 2015, after traveling for about half the age of the universe, a flood of powerful gamma rays from a distant galaxy slammed into Earth's atmosphere. That torrent generated a cascade of light -- a shower that fell onto the waiting mirrors of the Very Energetic Radiation Imaging Telescope Array System (VERITAS) in Arizona. The resulting data have given astronomers a unique look into that faraway galaxy and the black hole engine at its heart.
via Science Daily
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XXL hunt for galaxy clusters: Observations from ESO telescopes provide crucial third dimension in probe of Universe’s dark side

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ESO telescopes have provided an international team of astronomers with the gift of the third dimension in a plus-sized hunt for the largest gravitationally bound structures in the Universe — galaxy clusters. Observations by the VLT and the NTT complement those from other observatories across the globe and in space as part of the XXL survey — one of the largest ever such quests for clusters.
via Science Daily
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Life on ‘Mars’ by Way of Hawaii: Q. And A.

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Six researchers are living for a year in a NASA habitat that simulates the red planet.










via New York Times

Graphene nanoribbons get metallic

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Researchers have succeeded in experimentally realizing metallic graphene nanoribbons (GNRs) that are only 5 carbon atoms wide. In their article, the research team demonstrated fabrication of the GNRs and measured their electronic structure. The results suggest that these extremely narrow and single-atom-thick ribbons could be used as metallic interconnects in future microprocessors.
via Science Daily

Colorful Arcs over Buenos Aires

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Top six photos in ‘Global Physics Photowalk’ announced