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The nanomedicine (red) with the optimal size shows the highest tumor tissue (blue) retention integrated over time, which is the collective outcome of deep tumor tissue penetration, efficient cancer cell internalization as well as slow tumor clearance.

Averaged electron microscope images of two intermediate helicase structures. The top shows an ORC binding the two ring structures together, and the bottom shows the completed double-ring structure with the ORC detached.

This image illustrates how the nano-cocoon system works.

A schematic model of the unique morphology of the alloy. The Pd-islands (light-brown spheres) are embedded in an environment of tungsten (blue spheres). Oxygen are represented by red spheres, and hydrogen by white spheres.

The feature called Maskelyne is one of many newly discovered young volcanic deposits on the Moon. Called irregular mare patches, these areas are thought to be remnants of small basaltic eruptions that occurred much later than the commonly accepted end of lunar volcanism, 1 to 1.5 billion years ago.

NASA satellite data of the marine environment will be used in prototype marine biodiversity observation networks to be established in four U.S. locations, including the Florida Keys, pictured here.

NASA’s Traffic and Atmospheric Information for General Aviation (TAIGA) technology system is capable of showing pilots the altitude of nearby terrain via color. Yellow identifies terrain that is near the aircraft’s altitude and red shows the terrain that is higher than the plane’s altitude.

The Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory in Chile has taken this beautiful image, dappled with blue stars, of one of the most star-rich open clusters currently known — Messier 11, also known as NGC 6705 or the Wild Duck Cluster.

Earth's moon as observed in visible light (left), topography (center, where red is high and blue is low), and the GRAIL gravity gradients (right). The Procellarum region is a broad region of low topography covered in dark mare basalt. The gravity gradients reveal a giant rectangular pattern of structures surrounding the region.

Vertical nanopillars are ideal geometries for getting around the challenges of producing polymer architecture to boost power-conversion efficiency of light to electricity to power electronic devices.