Science

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NASA Space Telescopes Find Patchy Clouds on Exotic World

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Kepler-7b (left), which is 1.5 times the radius of Jupiter (right), is the first exoplanet to have its clouds mapped. The cloud map was produced using data from NASA's Kepler and Spitzer space telescopes.

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Improving lithium-ion batteries with nanoscale research

New research led by an electrical engineer at the University of California, San Diego is aimed at improving lithium-ion batteries through possible new electrode architectures with precise nano-scale designs. The researchers created nanowires that block diffusion of lithium (Li) across their silicon surface and promote layer-by-layer axial lithiation of the nanowire's germanium core.

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TEM image of a Silicon / Germanium nanowire.

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Hybrid Nanocomposites Designed in Iran for Targeted Anti-Cancer Drug Delivery

Iranian researchers from Lorestan University succeeded in designing a new type of drug delivery system for anti-cancer drugs by using linear dendritic polymers and iron nanoparticles.

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A new paradigm for nanoscale resolution MRI has been experimentally achieved

A team from the University of Illinois at Urbana-Champaign and Northwestern University has devised a novel nuclear magnetic resonance imaging (MRI) technique that delivers a roughly 10­nanometer spatial resolution. This represents a significant advance in MRI sensitivity—modern MRI techniques commonly used in medical imaging yield spatial resolutions on the millimeter length scale, with the highest-resolution experimental instruments giving spatial resolution of a few micrometers.

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Illustration of the experimental setup shows the two unique components of the teams novel MRI technique that was successful in producing a 2D MRI image with spatial resolution on the nanoscale.

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M60-UCD1: NASA's Hubble and Chandra Find Evidence for Densest Nearby Galaxy

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The densest galaxy in the nearby Universe may have been found. This galaxy weighs more than 200 million suns, over half of which is concentrated within a radius of just 80 light years.The density of stars in that region is 15,000 times greater than found in Earth's neighborhood in the Milky Way.

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Application of Gold Nanosensors to Measure Blood Clotting Agent

Iranian researchers from Shiraz University in association with researchers from Razi Kermanshah University used gold nanoparticles and designed sensors to measure heparin in blood plasmon samples.

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Creating Electricity with Caged Atoms

A lot of energy is wasted when machines turn hot, unnecessarily heating up their environment. Some of this thermal energy could be harvested using thermoelectric materials; they create electric current when they are used to bridge hot and cold objects.

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Clathrates: crytals enclosing single atoms

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Arctic sea ice reaches lowest extent for 2013

The National Snow and Ice Data Center (NSIDC) is part of the Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder. NSIDC scientists provide Arctic Sea Ice News & Analysis content, with partial support from NASA.

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Scientists watch from the deck of the U.S. Coast Guard Cutter Healy as it cuts through multiyear sea ice in the Arctic Ocean on July 6, 2011.

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Densest array of carbon nanotubes grown to date: New technique could one day help improve the performance of microelectronics in devices ranging from batteries to spacecraft

Carbon nanotubes' outstanding mechanical, electrical and thermal properties make them an alluring material to electronics manufacturers. However, until recently scientists believed that growing the high density of tiny graphene cylinders needed for many microelectronics applications would be difficult.

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Scanning electron microscope images are of CNT forests with low and high density.

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NASA Curiosity Rover Detects No Methane on Mars

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This picture shows a lab demonstration of the measurement chamber inside the Tunable Laser Spectrometer, an instrument that is part of the Sample Analysis at Mars investigation on NASA's Curiosity rover.

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