Science

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Virus structure inspires novel understanding of onion-like carbon nanoparticles

Symmetry is ubiquitous in the natural world. It occurs in gemstones and snowflakes and even in biology, an area typically associated with complexity and diversity. There are striking examples: the shapes of virus particles, such as those causing the common cold, are highly symmetrical and look like tiny footballs.

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This image shows a virus nested within fullerene cages called carbon onions.

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Scientists in Singapore develop novel ultra-fast electrical circuits using light-generated tunneling currents

Scientists in Singapore have successfully designed and fabricated electrical circuits that can operate at hundreds of terahertz frequencies, which is tens of thousands times faster than today's state-of-the-art microprocessors. This scientific breakthrough has the potential to revolutionise high-speed electronics, nanoscale opto-electronics and nonlinear optics.

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A focused electron beam (in yellow) was used to characterise the structures and to probe the optical properties of two plasmonic resonators bridged by a layer of molecules with a length of 0.5 nm.

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Beauty from chaos

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Osuga Valles

http://www.esa.int/Our_Activities/Space_Science/Mars_Express/Beauty_from...

內湖2021陳鵬程

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Hubble Stretches Stellar Tape Measure 10 Times Farther into Space

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Faraway Moon or Faint Star? Possible Exomoon Found

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Researchers have detected the first "exomoon" candidate -- a moon orbiting a planet that lies outside our solar system.

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Join in the Cassini Name Game

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In its next phase, NASA's Cassini spacecraft will perform 22 loops between Saturn and its innermost ring.

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LADEE Project Scientist Update: Citius, propius, occupatus

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An image taken by the star trackers aboard LADEE of the moon’s surface illuminated by a nearly full Earth.

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Scientists Succeed in Simultaneous Determination of Acetaminophen, Codeine in Drug Samples

Iranian chemists from Arak University used carbon nanotubes and succeeded in the production of a sensor that is able to simultaneously determine very tiny amounts of acetaminophen and codeine in drugs without any need to very time-consuming steps for the preparation of the sample.

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No compromises: JILA's short, flexible, reusable AFM probe

JILA researchers have engineered a short, flexible, reusable probe for the atomic force microscope (AFM) that enables state-of-the-art precision and stability in picoscale force measurements. Shorter, softer and more agile than standard and recently enhanced AFM probes, the JILA tips will benefit nanotechnology and studies of folding and stretching in biomolecules such as proteins and DNA.

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This image shows JILA's modified AFM probes measuring DNA molecules. The older mod (long cantilever, right) eliminated the usual gold coating to enhance long-term stability. The latest version (left) retains the gold coating where needed to reflect light but maintains excellent stability. Researchers also removed a large section to reduce stiffness and friction near surfaces. The new probe provides precise results much faster than before, while reducing "noise" (colored squiggles).

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Chance Meeting Creates Celestial Diamond Ring

Astronomers using ESO’s Very Large Telescope in Chile have captured this eye-catching image of planetary nebula PN A66 33 — usually known as Abell 33. Created when an aging star blew off its outer layers, this beautiful blue bubble is, by chance, aligned with a foreground star, and bears an uncanny resemblance to a diamond engagement ring. This cosmic gem is unusually symmetric, appearing to be almost circular on the sky.

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