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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.

Rice University researchers in the lab of Ching-Hwa Kiang use the bobbing needle from an atomic force microscope to grab and pull individual protein molecules. By stretching the proteins, Kiang's team can measure the precise physical forces that shape them.

The mineral Kawazulite is a natural “topological insulator,” a material that could have applications in a new genre of supercomputers.

Based on new evidence from Jupiter's moon Europa, astronomers hypothesize that chloride salts bubble up from the icy moon's global liquid ocean and reach the frozen surface where they are bombarded with sulfur from volcanoes on Jupiter's innermost large moon Io.

Artist's impression of a highly obscured high-mass X-ray binary.