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"Diamond nanothreads" promise extraordinary properties, including strength and stiffness greater than that of today's strongest nanotubes and polymers. The threads have a structure that has never been seen before. Image is courtesy of the Vincent Crespi lab, Penn State University.

Elevation data at the highest possible resolution from NASA's Shuttle Radar Topography Mission in February 2000 are now being released for the first time for most of the African continent. This color shaded relief image shows the extent of SRTM digital elevation data for Africa.

A Neptune-size planet with a clear atmosphere is shown crossing in front of its star in this artist's depiction.

The MIT researchers deposited triangular layers of molybdenum disulfide on a silicon substrate. At left, regions highlighted in blue indicate where the layers overlap.

This image depicts a nanoemulsion being used to template sophisticated materials

This artist concept depicts the process of orbital insertion of NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft.

ISS-RapidScat will have a close-up view of ocean winds from its perch on the International Space Station, as this 2010 astronaut photo of Hurricane Earl illustrates.

Rendering of the near–perfect crystal structure of the yttrium–iron–aluminum compound used in the study. The two–dimensional layers of the material allowed the scientists to isolate the magnetic ordering that emerged near absolute zero.

Rice researchers tune the color output of each array both by varying the length of the nanorods and by adjusting the length of the spaces between nanorods.