NRL's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle (UAV), has set another unofficial flight endurance record for a fuel-cell powered flight. The 26 hour and 1 minute flight took place on November 16th through 17th. (Continued)

NRL marine biogeochemistry and geology and geophysics scientists return from Arctic expedition exploring methane hydrate deposits in the Beaufort Sea and spatial variation of sediment contribution to Arctic climate change. (Continued)

In the newly released book High Energy Radiation from Black Holes: Gamma Rays, Cosmic Rays, and Neutrinos, Charles Dermer, an astrophysicist in the Space Science Division of the Naval Research Laboratory, and Govind Menon, a professor of physics at Troy University, Troy, Alabama, argue that black holes are the sources of the highest energy photon and particle radiations. (Continued)

NRL recently conducted a chemical release experiment called the Charged Aerosol Release Experiment (CARE) that was viewed along the East Coast of the United States. The bright optical display, easily seen from the ground, was produced by sunlight scattering off dust particles. (Continued)

NRL's Space Science Division and Spacecraft Engineering Department offers a first of its kind technique for remote sensing of the ionosphere and thermosphere from space. (Continued)