Science

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Nanometer-scale diamond tips improve nano-manufacturing

One of the most promising innovations of nanotechnology has been the ability to perform rapid nanofabrication using nanometer-scale tips. The fabrication speed can be dramatically increased by using heat. High speed and high temperature have been known to degrade the tip… until now.

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Diamond nano-tip integrated onto the micro-heater of a doped silicon microcantilever. The tip has a radius of 10 nm.

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Proba-2 soaks up three solar eclipses

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The total solar eclipse of 13/14 November 2012. The clouds cleared in time for observers at Palm Cove, Australia, to experience totality as the Moon totally obscured the Sun for around two minutes, revealing the Sun's bright corona.

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Scientists Produce Efficient Nanocatalysts for Methane Partial Oxidation

Iranian researchers from Tarbiat Modarres University and Research Institute of Petroleum Industry acquired the technical know-how for the process of dry combination conversion and methane partial oxidation by synthesizing perovskite nanocatalysts through sol-gel method.

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Smart scaffolding aims to rebuild tissue from the inside: NIH funds tissue engineering project at Rice University to test peptide hydrogels, starting with teeth

Smart scaffolding that can guide cells, proteins and small-molecule drugs to make new tissue and repair damage inside the body is in the works at Rice University.

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At top, a graphic shows multidomain peptide self-assembling into a nanofiber. The scanning electron microscope image at bottom left shows formed nanofibers; at bottom right, a histological section of cells (blue dots) grows in a dentincylinder, where they mimic the desired dental-pulp regeneration.

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NASA Study Examines Antarctic Sea Ice Increases

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View of Sheldon Glacier with Mount Barre in the background, seen from Ryder Bay near Rothera Research Station, Adelaide Island, Antarctica. A new NASA/British Antarctic Survey study examines why Antarctic sea ice cover has increased under the effects of climate change over the past two decades.

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Storms, Ozone, Vegetation and More: NASA-NOAA Suomi NPP Satellite Returns First Year of Data

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These two images are season-long composites of ocean chlorophyll concentrations derived from visible radiometric measurements made by the VIIRS instrument on Suomi NPP. The date ranges of the two composites are included in the individual images. These false-colored images make the data stand out. The purple and blue colors represent lower chlorophyll concentrations. The oranges and reds represent higher chlorophyll concentrations. These differences in color indicate areas with lesser or greater phytoplankton biomass.

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Odd pair of aging stars sculpt spectacular shape of planetary nebula

Astronomers using ESO’s Very Large Telescope have discovered a pair of stars orbiting each other at the centre of one of the most remarkable examples of a planetary nebula. The new result confirms a long-debated theory about what controls the spectacular and symmetric appearance of the material flung out into space.

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What if the nanoworld slides: A new study to better understand how friction works

A study published by Andrea Vanossi, Nicola Manini and Erio Tosatti - three SISSA researchers - in PNAS (Proceedings of the National Academy of Sciences) provides a new tool to better understand how sliding friction works in nanotribology, through colloidal crystals.

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What if the nanoworld slides?

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Iranian Scientists Remove 90% of Arsenic from Polluted Waters

Iranian researchers from Bu-Ali Sina University, Yazd University and Hamedan University of Medical Sciences succeeded in removing arsenic from polluted waters by using calcium peroxide nanoparticles.

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Cygnus OB2: Probing a Nearby Stellar Cradle

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