Science

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Rosetta’s comet contains ingredients for life

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Rosetta’s comet contains ingredients for life

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NASA Telescopes Find Clues for How Giant Black Holes Formed So Quickly

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More light on cancer: Scientists created nanoparticles to highlight cancer cells

The group of Russian and French researchers, with the participation of scientists from the Lomonosov Moscow State University, has succeeded to synthesize nanoparticles of ultrapure silicon, which exhibited the property of efficient photoluminescence, i.e., secondary light emission after photoexcitation. These particles were able to easily penetrate into cancer cells and it allowed to use them as luminescent markers in the early diagnosis of cancer and in treatments of this disease. The article was published in the journal Scientific Reports.

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These are confocal fluorescence microscopy images of CF2Th cancer cells incubated with LA-Si NPs.

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Hubble Takes Mars Portrait Near Close Approach

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How light is detected affects the atom that emits it: An experiment suggests it might be possible to control atoms entangled with the light they emit by manipulating detection

Flick a switch on a dark winter day and your office is flooded with bright light, one of many everyday miracles to which we are all usually oblivious.

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In spontaneous emission, wave detection gives you more information than particle detection.

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From ‘Magnetoshells’ to Growable Habitats, NASA Invests in Next Stage of Visionary Technology Development

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Physicists measure van der Waals forces of individual atoms for the first time

Physicists at the Swiss Nanoscience Institute and the University of Basel have succeeded in measuring the very weak van der Waals forces between individual atoms for the first time. To do this, they fixed individual noble gas atoms within a molecular network and determined the interactions with a single xenon atom that they had positioned at the tip of an atomic force microscope. As expected, the forces varied according to the distance between the two atoms; but, in some cases, the forces were several times larger than theoretically calculated. These findings are reported by the international team of researchers in Nature Communications.

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e gas atoms deposited on molecular network are investigated with a probing tip, which is decorated with a xenon atom. The measurements give information about the weak van der Waals forces between these individual atoms.

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U.S. Lab Participates in New National Microbiome Initiative

New effort will address climate change, food security, and human health challenges

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The potential impacts of a unified microbiome initiative to understand and responsibly harness the activities of microbial communities.

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Hubble Catches Views of a Jet Rotating with Comet 252P/LINEAR

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Rice experts unveil submicroscopic tunable, optical amplifier: Photonics researchers create first nanoscale 'optical parametric amplifier'

Rice University photonics researchers have unveiled a new nanoparticle amplifier that can generate infrared light and boost the output of one light by capturing and converting energy from a second light.

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Rice University's new light-amplifying nanoparticle consists of a 190-nanometer diameter sphere of barium tin oxide surrounded by a 30-nanometer-thick shell of gold.