Science

Solar cell consisting of a single molecule

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Photosystem-I (green) is optically excited by an electrode (on top). An electron then is transferred step by step in only 16 nanoseconds....

NASA Radar to Study Volcanoes in Alaska, Japan

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This UAVSAR interferogram shows active volcano Mount St. Helens (left) and dormant volcano Mount...

A curious cold layer in the atmosphere of Venus

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This image of the Venus southern hemisphere illustrates the terminator – the transitional region between the...

Crescent Mars

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Nano-hillocks: Of mountains and craters

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Following bombardment with highly charged ions, nano-hillocks have formed in an area of localized melting. Atomic force microscope image....

Mars Rover Opportunity Working at 'Matijevic Hill'

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Rock fins up to about 1 foot (30 centimeters) tall dominate this scene from the panoramic camera (Pancam) on NASA's...

New method monitors semiconductor etching as it happens – with light

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A three-dimensional image of an etched gallium-arsenide semiconductor, taken during etching with a new microscopy technique that monitors...

All systems go at the biofactory

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The finely honed tip of the atomic force microscope (AFM) allows one to pick up single biomolecules and deposit them elsewhere with...