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Diagram of an example flight profile is shown. It takes about 3 hours from launch for the payload to reach float (maximum altitude). HEROES will observe the Sun for approximately 5 hours until it is no longer visible. Astrophysical observations will then take place during the night-time.

This view of Earth comes from NASA's Moderate Resolution Imaging Spectroradiometer aboard the Terra satellite.

This atomic force microscope image shows directed self-assembly of a printed line of block copolymer on a template prepared by photolithography. The microscope’s software colored and scaled the image. The density of patterns in the template (bounded by the thin lines) is two times that of the self-assembled structures (the ribbons).

If you could drive a car around the giant Asteroid Vesta, you would need a road map akin to the atlas of images released from NASA's Dawn mission. Twenty-nine new maps of the asteroid, one of which is shown here, show its mountains and craters at a scale similar to that of common road maps.

Japan has launched a new rocket that it hopes will be a less expensive and more efficient way of sending satellites into space.

A diagram of one of the group's experimental setups shows a copper plate that can be heated using a torch underneath it, to study the effect of temperature on the process. On top of the plate, an apparatus consisting of two reservoirs separated by a silicon structure that has a single carbon nanotube on top of it. When a power source is connected to the electrodes (the wires extending up from the device), charged molecules (ions) from one of the reservoirs can pass through the tube, and its progress can be monitored using a scanning electron microscope.

These images show the retention of doxorubicin and ND-DOX in brain tissue, with light microscopic images (upper rows) and fluorescence images detecting fluorescence generated from doxorubicin (lower rows). The images show the distribution of unmodified doxorubicin and ND-DOX after convection-enhanced delivery (CED) at 6, 16, 24 and 72 hours.

Artist's concept of NASA's Deep Impact spacecraft.