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Sunspots: Nuclear Fusion

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Nuclear fusion is the process by which multiple nuclei join together to form a heavier nucleus. The source of all the energy so generously radiated by the Sun does two things: it converts hydrogen into helium and it converts mass to energy.Sunspots are small areas that appear darker than their surrounding solar surface. Sunspot areas have strong magnetic field. Occasionally the strong magnetic field in a sunspot is overly twisted and decides to fire up like 'fire works'. Those 'fire works' are solar flares and they are above sunspots. Sunspots last for a bit shorter than a day to several days. Flares are much shorter and last for a few seconds to a few hours. Sunspots are temporary, relatively darker and relatively cooler spots in the sun's photosphere. They are typically of the size of an earth. A solar flare is a sudden, tremendous, explosive outburst of …show more content…
Earth will not be able to support life if the Sun becomes a giant star. Giant stars have large radii as their name implies. When the Sun becomes a giant star, it may become so large as to engulf Earth, in which case the planet will be destroyed. Even if this does not happen, the sun will expand so far out that the temperatures on Earth will become extremely high so that all oceans will evaporate away, and there will be no water left on Earth. So, no life which depends on water will be able to survive.Our modern, technologically complex systems - including communications, transportation, and electrical power systems - can be disrupted and damaged by space weather storms. Exposure to radiation can threaten astronauts and commercial air travelers alike, and has affected the evolution of life on Earth. Space weather probably alters the weather and climate on our planet, though we don't yet have a precise understanding of those influences. The Northern Lights are a visible result of a magnetic storm happening in our

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