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Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221.; The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies.
Its orbit is optimized to spend extended periods in locations where reconnection is known to occur: at the dayside magnetopause, the place where the pressure from the solar wind and the planets' magnetic field are equal; and in the magnetotail, which is formed by pressure from the solar wind on a planet's magnetosphere and which can extend ...
A rendering of the magnetic field lines of the magnetosphere of the Earth. In astronomy and planetary science, a magnetosphere is a region of space surrounding an astronomical object in which charged particles are affected by that object's magnetic field. [1] [2] It is created by a celestial body with an active interior dynamo.
Specifically, it would "investigate the coupling of Earth's magnetosphere and ionosphere focusing on the conversion of electromagnetic energy into particle energy in auroral acceleration regions." [ 3 ] To this end, the two spacecraft would measure electron distributions, ion distributions, and vector electric and magnetic fields for ...
The magnetosphere contains charged particles that are trapped from the stellar wind, which then move along these field lines. As the star rotates, the magnetosphere rotates with it, dragging along the charged particles. [13] As stars emit matter with a stellar wind from the photosphere, the magnetosphere creates a torque on the ejected matter.
Earth's magnetic field is produced in the outer liquid part of its core due to a dynamo that produce electrical currents there. The ions and electrons of a plasma interacting with the Earth's magnetic field generally follow its magnetic field lines. These represent the force that a north magnetic pole would experience at any given point.
The ARTEMIS, or Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun, mission studies the Moon's space environment, surface composition and magnetic field, and core structure. ARTEMIS uses two spacecraft from the THEMIS magnetosphere mission that were moved into place near the Moon. [15]
Schematic of the Birkeland or Field-Aligned Currents and the ionospheric current systems they connect to, Pedersen and Hall currents. [1]A Birkeland current (also known as field-aligned current, FAC) is a set of electrical currents that flow along geomagnetic field lines connecting the Earth's magnetosphere to the Earth's high latitude ionosphere.