Science

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End of the Road for Roadrunner: Once the World’s Fastest Supercomputer; Central to the Success of Stockpile Stewardship

Roadrunner, the first supercomputer to break the once-elusive petaflop barrier—one million billion calculations per second

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Hubble observes the hidden depths of Messier 77

The NASA/ESA Hubble Space Telescope has captured this vivid image of spiral galaxy Messier 77, one of the most famous and well-studied galaxies in the sky. The patches of red across this image highlight pockets of star formation along the pinwheeling arms, with dark dust lanes stretching across the galaxy’s energetic centre.

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Imaging methodology reveals nano details not seen before: Understanding nanoparticles at atomic scale in 3 dimensions could improve materials

A team of scientists from the University of California, Los Angeles (UCLA) and Northwestern University has produced 3-D images and videos of a tiny platinum nanoparticle at atomic resolution that reveal new details of defects in nanomaterials that have not been seen before.

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This is a graphic representation of a 3-D atomic resolution screw dislocation in a platinum nanoparticle.

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Even graphene has weak spots: Rice, Tsinghua theorists find junctions in polycrystalline graphene sap strength of super material

Graphene, the single-atom-thick form of carbon, has become famous for its extraordinary strength. But less-than-perfect sheets of the material show unexpected weakness, according to researchers at Rice University in Houston and Tsinghua University in Beijing.

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New work by theorists at Rice and Tsinghua universities shows defects in polycrystalline forms of graphene will sap its strength. The illustration from a simulation at left shows a junction of grain boundaries where three domains of graphene meet with a strained bond in the center. At right, the calculated stress buildup at the tip of a finite-length grain boundary.

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Young, Hot and Blue

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This pretty sprinkling of bright blue stars is the cluster NGC 2547, a group of recently formed stars in the southern constellation of Vela (The Sail).

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The long winter ahead

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Pondering the setting Sun

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Trees Used to Create Recyclable, Efficient Solar Cell

Solar cells are just like leaves, capturing the sunlight and turning it into energy. It's fitting that they can now be made partially from trees.

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Solar Cell Made from Trees

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Hubble Digs Up Galactic Glow Worm

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Iranian Researchers Use Spectroscopy Advantages in Nanobiotechnology Studies

Iranian researchers introduced the advantages of matrix fluorescent spectroscopy methods in nanobiotechnology studies and presented novel data analysis methods to be used in this field.

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Anasys report on the Lorentz Contact Resonance imaging mode now available for their afm+ and nanoIR systems

Anasys Instruments continues to expand the capabilities of their nanoscale materials characterization techniques with the Lorentz Contact Resonance (LCR) imaging mode. This is now available for their afm+® and nanoIR™ systems.

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Schematic to illustrate Lorentz Contact Resonance imaging