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  2. Magnetosphere - Wikipedia

    en.wikipedia.org/wiki/Magnetosphere

    Mercury, Earth, Jupiter, Ganymede, Saturn, Uranus, and Neptune, for example, exhibit intrinsic magnetospheres. A magnetosphere is classified as "induced" when , or when the solar wind is not opposed by the object's magnetic field. In this case, the solar wind interacts with the atmosphere or ionosphere of the planet (or surface of the planet ...

  3. Birkeland current - Wikipedia

    en.wikipedia.org/wiki/Birkeland_current

    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.

  4. Heliosphere - Wikipedia

    en.wikipedia.org/wiki/Heliosphere

    The heliosphere is the magnetosphere, astrosphere, and outermost atmospheric layer of the Sun.It takes the shape of a vast, tailed bubble-like region of space.In plasma physics terms, it is the cavity formed by the Sun in the surrounding interstellar medium.

  5. Substorm - Wikipedia

    en.wikipedia.org/wiki/Substorm

    A substorm, sometimes referred to as a magnetospheric substorm or an auroral substorm, is a brief disturbance in the Earth's magnetosphere that causes energy to be released from the "tail" of the magnetosphere and injected into the high latitude ionosphere.

  6. Magnetospheric Multiscale Mission - Wikipedia

    en.wikipedia.org/wiki/Magnetospheric_Multiscale...

    The Magnetospheric Multiscale (MMS) Mission is a NASA robotic space mission to study the Earth's magnetosphere, using four identical spacecraft flying in a tetrahedral formation. [1] The spacecraft were launched on 13 March 2015 at 02:44 UTC . [ 2 ]

  7. Hindi–Urdu transliteration - Wikipedia

    en.wikipedia.org/wiki/Hindi–Urdu_transliteration

    Note that Hindi–Urdu transliteration schemes can be used for Punjabi as well, for Gurmukhi (Eastern Punjabi) to Shahmukhi (Western Punjabi) conversion, since Shahmukhi is a superset of the Urdu alphabet (with 2 extra consonants) and the Gurmukhi script can be easily converted to the Devanagari script.

  8. Alfvén wave - Wikipedia

    en.wikipedia.org/wiki/Alfvén_wave

    The phase velocity of an electromagnetic wave in such a medium is = = + For the case of an Alfvén wave = + where is the Alfvén wave group velocity. (The formula for the phase velocity assumes that the plasma particles are moving at non-relativistic speeds, the mass-weighted particle velocity is zero in the frame of reference, and the wave is ...

  9. Hindustani grammar - Wikipedia

    en.wikipedia.org/wiki/Hindustani_grammar

    In Urdu, many Arabic words may retain their original dual and plural markings in Urdu. i.e. vālid "father" → vālidain "parents". The -iyā ending is also not always a reliable indicator of gender or noun type. Some words such as pahiyā ('wheel') and Persian takiyā ('pillow') are masculine type-I: pahiye ('wheels'), takiye ('pillows').