Science

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SpaceX Dragon Splashes Down with Crucial NASA Research Samples

SpaceX's Dragon cargo spacecraft splashed down in the Pacific Ocean at 11:47 a.m. EDT Friday, Aug. 26, southwest of Baja California with more than 3,000 pounds of NASA cargo, science and technology demonstration samples from the International Space Station.

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A nanoscale wireless communication system via plasmonic antennas: Greater control affords 'in-plane' transmission of waves at or near visible light

The pursuit of next-generation technologies places a premium on producing increased speed and efficiency with components built at scales small enough to function on a computer chip.

One of the barriers to advances in "on-chip" communications is the size of the electromagnetic waves at radio and microwave frequencies, which form the backbone of modern wireless technology. The relatively large waves handcuff further miniaturization.

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NASA's Juno Successfully Completes Jupiter Flyby

NASA's Juno mission successfully executed its first of 36 orbital flybys of Jupiter on August 27. The time of closest approach with the gas-giant world was 6:44 a.m. PDT (9:44 a.m. EDT, 13:44 UTC) when Juno passed about 2,600 miles (4,200 kilometers) above Jupiter's swirling clouds. At the time, Juno was traveling at 130,000 mph (208,000 kilometers per hour) with respect to the planet. This flyby was the closest Juno will get to Jupiter during its prime mission.

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A Surprising Blazar Connection Revealed

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Venus-like Exoplanet Might Have Oxygen Atmosphere, But Not Life

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Kepler Watches Stellar Dancers in the Pleiades Cluster

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This image shows the Pleiades cluster of stars as seen through the eyes of WISE, or NASA's Wide-field Infrared Survey Explorer.

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NASA Climate Modeling Suggests Venus May Have Been Habitable

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Observations suggest Venus may have had water oceans in its distant past. A land-ocean pattern like that above was used in a climate model to show how storm clouds could have shielded ancient Venus from strong sunlight and made the planet habitable.

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Let's roll: Material for polymer solar cells may lend itself to large-area processing: 'Sweet spot' for mass-producing polymer solar cells may be far larger than dictated by the conventional wisdom

For all the promise they have shown in the lab, polymer solar cells still need to "get on a roll" like the ones employed in printing newspapers so that large sheets of acceptably efficient photovoltaic devices can be manufactured continuously and economically. Polymer solar cells offer advantages over their traditional silicon-based counterparts in numerous ways, including lower cost, potentially smaller carbon footprint and a greater variety of uses.

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A demonstration solar park based on polymer solar cells at the Technical University of Denmark in Roskilde, Denmark.

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Seeing the invisible: Visible light superlens made from nanobeads: New solid 3-D superlenses extends magnification x5 to reveal new detail

Nanobeads are all around us- and are, some might argue, used too frequently in everything from sun-screen to white paint, but a new ground-breaking application is revealing hidden worlds.

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Fig.1 (a) Conceptual drawing of nanoparticle-based metamaterial solid immersion lens (mSIL) (b) Lab made mSIL using titanium dioxide nanoparticles (c) SEM image of 60 nm sized imaging sample (d) corresponding superlens imaging of the 60 nm samples by the developed mSIL.

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Seeing the invisible: Visible light superlens made from nanobeads: New solid 3-D superlenses extends magnification x5 to reveal new detail

Nanobeads are all around us- and are, some might argue, used too frequently in everything from sun-screen to white paint, but a new ground-breaking application is revealing hidden worlds.

A paper in Science Advances (12 August) provides proof of a new concept, using new solid 3D superlenses to break through the scale of things previously visible through a microscope.