Solar Astronomy Essay

1138 Words 5 Pages
4 understanding of the Suns temperatures, in June of 2013, NASA launched the IRIS solar observatory. IRIS, short for
Interface Region Imaging Spectrograph, was launched to use imaging spectrography on the Sun. NASA’s goal was to determine “how solar material moves, gathers energy, and heats up as it travels through a little-understood region in the sun 's lower atmosphere. This interface region between the Sun 's photosphere and corona powers its dynamic million-degree atmosphere and drives the solar wind.” (IRIS mission overview) This mission could help us to understand how material in the Suns corona reaches temperatures thousands of times greater than its surface.
It may also explain how magnetic fields cause solar flares. All of these things
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It was to be the beginning of the study of the magnetic properties of our planet. In 1833, Earl Gauss invented a magnetometer which could measure the location of deposits of iron beneath Earths’ surface. However, it wasn’t until 1940 that Walter Elsasser would propose an equation model known as the Dynamo Theory, that scientist began to understand that the variations in Earth’s magnetic field are related to the motion of the Earth’s iron core in relation to time, latitude, and longitude. If this lacks a level of excitement for you, you should note that the magnetic field around our planet acts as a shield which keeps harmful energetic radiated particles from the Sun, known as solar wind, from bombarding us.These cosmic rays could cause serious cell damage to humans and our biosphere. Unfortunately, our magnetic field as weakened by 30% over the last 3000 years. Armed with evidence of the diminished field, the Dynamo Theory and magnetometers, NASA is exploring the core properties of
Earth as well as other planets to identify the behavior that cause this phenomenon.In 1958, NASA sent Explorer 1 into space with its primary mission to detect cosmic rays. The mission last for more than 10 years, brought us
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Their cost for the Venus Express, 110 Million dollars.
Study of planets and moons may very well be the key to our understanding how the universe was formed, and how life began.One might think these questions have no bearing on us today, but scientific research would differ.Most comets, moons and planets in our system have remained relatively unaltered for millions of years.
Their unaltered state can offer evidence of where water, chemicals, and material that shaped our planet came from. If the components needed for life come from space, then space could hold the secrets for creating life on other planets. If we hope to branch life out into space, we need to be aware of the hazards that we might encounter as well as what resources we can utilize on the way.After all, we are consuming the resources of this planet at an alarming rate. Branching out might afford us an opportunity to start over if we cannot fix the problems we are currently creating here on Earth. Should we not want to branch out, space could hold the key to finding resources that would allow us to extend our years on this planet. Exploration could also protect us from changes in our climate due to global warming as well as potential asteroid impacts. Though few asteroids

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