auroral radiation
21Starfish Prime — The debris fireball stretching along Earth s magnetic field [7] with air glow aurora as seen at 3 minutes from an RC 135 surveillance aircraft. Information …
22Birkeland current — Schmatic of the Birkeland or Field Aligned Currents and the ionospheric current systems they connect to.[1] A Birkeland current is a set of currents which flow along geomagnetic field line connecting the Earth’s magnetosphere to the Earth s hi …
23Double layer (plasma) — This article is about the structure in plasma physics. For other uses, see Double layer. Saturnian aurora whose reddish colour is characteristic of ionized hydrogen plasma.[1] Powered by the Saturnian equivalent of (filamentary) Birkeland… …
24Earth's magnetic field — Computer simulation of the Earth s field in a normal period between reversals.[1] The tubes represent magnetic field lines, blue when the field points towards the center and yellow when away. The rotation axis of the Earth is centered and… …
25Methods of detecting extrasolar planets — Any planet is an extremely faint light source compared to its parent star. In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare that washes it out. For those reasons, only a …
26Operation Fishbowl — was a series of high altitude nuclear tests in 1962 that were carried out by the United States as a part of the larger Operation Dominic nuclear test program. Array of rockets with instruments for making scientific measurements of high altitude… …
27Io (moon) — ] Unlike most satellites in the outer Solar System (which have a thick coating of ice), Io is primarily composed of silicate rock surrounding a molten iron or iron sulfide core. Most of Io s surface is characterized by extensive plains coated… …
28List of radio propagation topics — This is a list of radio propagation terms. NOTOC A a index A index aa index active prominence active prominence region (APR) active region active surge region (ASR) active dark filament (ADF) AE index Air Force Geophysics Laboratory (AFGL) arch… …
29Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
30Substorm — A series of images made by ultraviolet light imager on the THEMIS spacecraft showing the aurora and Earth s upper atmosphere. The glowing side is the atmosphere lit up by the Sun s light energy and the oval of light is the aurora. During a… …
