Astronomers still have no idea why they occur in
more or less regular cycles of 11 years. There is, however, a broad
scientific consensus that the entire solar activity, which essentially consists
of various forms of explosions and bursts of sun-grown when the number of
sunspots, and decreases when this number decreases.
Most of the explosions of sunspots belong to a
common variety known as Coronal Mass Ejection (CME). CMEs are clouds of
gas at high temperatures leaving the Sun and Interplanetary Space cross,
creating shock waves that accelerate different particles, mostly protons, in
front of them and resulting in what is known as Proton Storm.
Increased
solar activity
Scientists have found that, perhaps with the exception
of a few brief peaks, the Sun is more active today than at any other time since
the end of the Ice Age, 12,000 years ago. Since 1940 the Sun has produced
more sunspots, and more explosions and eruptions, which in the past.
Some mathematical models estimate that the Sun has
changed by nearly 0.5% since the preindustrial era. Climate models
indicate that this change may account for more than 30% of global warming that
has occurred since 1850.
On August 7, 1972 which was, until then, was the
most intense solar storm ever recorded?
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