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The illustration on the left shows the variations of light intensity within a nanolaser. The figure on the right shows schematically a nanolaser with a metallic cavity, where the center red region confines electrons and the grey enclosure is a silver cavity. The blue layer on top is a substrate where the laser structure is grown. The orange-yellow color on top indicates the light emission. Research led by Arizona state University engineering professor Cun-Zheng Ning has produced nanolasers that can operate under a battery power at room temperatures – instead of only in refrigerated conditions – which opens the door to use of the lasers in many practical applications in modern electronics.

Schematic diagram of single-crystalline nanowire organic phototransistors

By tethering gold nanoparticles (large spheres in top image) to the nanopore (violet), the temperature around the nanopore can be changed quickly and precisely with laser light, allowing scientists to distinguish between similar molecules in the pore that behave differently under varied temperature conditions.

Atomic force microscope infrared spectroscopy (AFM-IR) of polymer nanostructures.

Russian scientists say they might have found new life forms in a fresh-water Antarctic lake that has been sealed off from the world for 14 million years.

New air-breathing cathode for miniaturised biofuel cells, developed by a team of researchers from the Institute of Physical Chemistry of the Polish Academy of Sciences in Warsaw. The cathode consumes oxygen from air. Pictured above: Adrianna Złoczewska, a PhD student at the IPC PAS.

For those in search of comet L4 PANSTARRS, look to the west after sunset in early and mid-March. This graphic shows the comet's expected positions in the sky.

This illustration schematically shows where the Shallow Radar instrument on NASA's Mars Reconnaissance Orbiter detected flood channels that had been buried by lava flows in the Elysium Planitia region of Mars.