Physics

NASA Astronaut Scott Kelly Shares Bullying Prevention Message Ahead of His One-Year Mission

NASA astronaut Scott Kelly, who is scheduled to fly on a one-year spaceflight mission in 2015, is lending his voice to help reduce childhood bullying. As part of Bullying Prevention Awareness Month, Kelly recorded a special message encouraging bystanders to take action.

NASA Astronaut Scott Kelly Shares Bullying Prevention Message Ahead of His One-Year Mission

NASA astronaut Scott Kelly, who is scheduled to fly on a one-year spaceflight mission in 2015, is lending his voice to help reduce childhood bullying. As part of Bullying Prevention Awareness Month, Kelly recorded a special message encouraging bystanders to take action.

NASA Seeks Ultra-lightweight Materials to Help Enable Journey to Mars

NASA is seeking proposals to develop and manufacture ultra-lightweight materials for aerospace vehicles and structures of the future. Proposals will demonstrate lower-mass alternatives to honeycomb or foam cores currently used in composite sandwich structures.

Unlocking The Other Senses of Space

These days it's no surprise to come across a gallery of amazing astronomy images. The Hubble Space Telescope, the other NASA great observatories and space probes, the European Space Agency and European Southern Observatory, and many, many dedicated amateurs (among other sources) provide a steady flow of visual riches. Mind-boggling beauty shows up every day; I can barely keep up with it in my Twitter feed.

But what of the other human senses? Our appreciation of the natural world is bolste

New microscope collects dynamic images of the molecules that animate life

Over the last decade, powerful new microscopes have dramatically sharpened biologists' focus on the molecules that animate and propel life. Now, a new imaging platform developed by Eric Betzig and colleagues at the Howard Hughes Medical Institute's Janelia Research Campus offers another leap forward for light microscopy. The new technology collects high-resolution images rapidly and minimizes damage to cells, meaning it can image the three-dimensional activity of molecules, cells, and embryos in fine detail over longer periods than was previously possible.

Molecular structure of water at gold electrodes revealed

Researchers have recorded the first observations of the molecular structure of liquid water at a gold electrode under different battery charging conditions.

Inauguration of second neutrino detector for Double Chooz experiment

Work on a second neutrino detector has just been completed by CNRS and CEA near the Chooz nuclear power plant in northeastern France. Its measurements will supplement those of the first detector installed five years ago to study, as part of the Double Chooz experiment, the characteristics of neutrinos, highly elusive elementary particles produced in abundance in the sun and nuclear reactors.

Close Encounters: Comet Siding Spring Seen Next to Mars

This composite NASA Hubble Space Telescope Image captures the positions of comet Siding Spring and Mars in a never-before-seen close passage of a comet by the Red Planet.

Acousto-optic tunable filter technology for balloon-borne platforms

A balloon-borne acousto-optic tunable filter hyperspectral imager is ideally suited to address numerous outstanding questions in planetary science. Their spectral agility, narrowband wavelength selection, tolerance to the near-space environment, and spectral coverage would enable investigations not feasible from the ground. Example use cases include synoptic observations of clouds on Venus and the giant planets, studies of molecular emissions from cometary comae, the mapping of surface ices on small bodies, and polarimetry.

Microscopic "walkers" find their way across cell surfaces

Nature has developed a wide variety of methods for guiding particular cells, enzymes, and molecules to specific structures inside the body: White blood cells can find their way to the site of an infection, while scar-forming cells migrate to the site of a wound. But finding ways of guiding artificial materials within the body has proven more difficult.

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