A space tornado is a
solar windstorm and is exceptionally larger and more powerful than conventional
tornadoes
A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, altho ...
on
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...
.
They are also thought to produce the ''
aurora borealis
An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of br ...
'' phenomenon.
Tornadoes on Earth are formed within the atmosphere by thunderstorms, while space tornadoes are formed by plasma interacting with magnetic fields.
Characteristics
Space tornadoes are made up of
plasmas, consisting of extremely hot
ionized gases that rotate at extremely high speeds, some recorded at over .
Within its funnel, they also generate strong electrical currents of about 100,000
ampere
The ampere (, ; symbol: A), often shortened to amp,SI supports only the use of symbols and deprecates the use of abbreviations for units. is the unit of electric current in the International System of Units (SI). One ampere is equal to elect ...
s.
Observations show some reach up to in size then will produce miniature space tornadoes stretching around wide and more than long. Space tornadoes form roughly every three hours and take only a minute to reach the
Ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an ...
. Power transformers and other man-made constructs are susceptible to damage from space tornadoes.
Discovery
Much of what is understood about space tornadoes was obtained through a
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research.
NASA was established in 1958, succeeding t ...
mission called
Time History of Events and Macroscale Interactions during Substorms (THEMIS), which deployed several probes to measure the strength of the electrical currents, size, and velocity of the rotating plasma.
See also
*
Space hurricane
*
Earth's magnetic field
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun. The magnetic f ...
*
Solar wind
The solar wind is a stream of charged particles released from the upper atmosphere of the Sun, called the corona. This plasma mostly consists of electrons, protons and alpha particles with kinetic energy between . The composition of the sola ...
References
Solar phenomena
Space weather
Storms
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