NRL RAIDS experiment advances ionospheric remote sensing

Naval Research Laboratory scientists have obtained a first-ever measured altitude profile of a dim extreme-ultraviolet terrestrial airglow emission that provides vital information needed to test and improve the accuracy of ...

Seeing inside the nose of an aircraft

Radio signals reach pilots on board an aircraft through the "radar dome", the rounded nose of the aircraft. But if errors occur during the production of this "nose", - tiny foreign particles, drops of water or air bubbles ...

ONR pursuing affordable common radar for surface ships

To upgrade the Navy's fleet of aging combat ship radar systems, the Office of Naval Research (ONR) is developing technologies that will combat the obsolescence of surveillance systems at a more affordable cost.

Tornado forecasting pushes scientific limits

Ernest Fawbush and Robert Miller made the first ever tornado forecast in March of 1948 using only paper, pencil, and a World War II-era radar -- but tornado forecasting has changed dramatically since that initial forecast ...

European space scout

The growing quantity of space debris is a serious threat to satellites and other spacecraft, which risk being damaged or even destroyed. A new European space surveillance system is being developed to ward off the danger of ...

Insect hearing inspires new approach to small antennas

(PhysOrg.com) -- Ormia ochracea is a small parasitic fly best known for its strong sense of directional hearing. A female fly tracks a male cricket by its chirps and then deposits her eggs on the unfortunate host. The larvae ...

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