Tag Archives: astro201

Why is there water on the Earth?

By the current model of solar system formation, the solar system formed according to what materials condense at which distances. Near the center of the solar system nothing could condense because it was so hot. It was also very dense there, and this was where the sun formed. Farther out from the center, rocky and […] Continue reading

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The Future of Life On Earth

The future of Earth and the future of life depends on multiple factors.  Disregarding human technology and the effects of global warming, Earth’s future depends on interactions with other objects in the solar system, the increase in the Sun’s luminosity, and the rate of cooling of the Earth’s interior. For example, scientists have predicted that […] Continue reading

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Space Travel

Most people think traveling through an asteroid field would take a complicated series of evasive maneuvers and luck, but as it turns out, Star Wars got that part wrong. Dodging asteroids (like in the above picture), but odds are, you could steer blindly and never even come close to hitting anything. This is because asteroids […] Continue reading

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The Prodigious Sun

Is the Sun an efficient producer of energy via nuclear fusion? While humanity may be years away from commercializing nuclear fusion power, the Sun has been doing it for a while now (and for free!). The Sun is the most efficient generator of nuclear power in our solar system. Inside the Sun, nuclear reactions are … Continue reading The Prodigious Sun Continue reading

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If the Moon were only 1 pixel

Someone named Josh Worth made a to-scale model of our solar system wherein the Moon is only one pixel in diameter, and it’s totally awesome. The horizontally-scrollable webpage starts at the Sun, and moves right, with text interspersed into the vast distance between planets. What’s so cool about this particular model is that it represents… Continue reading

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Asteroid Mining

There are millions of asteroids in our solar system, and they are more valuable than most people think. When I thought of asteroids in the past, I thought of grey rocks that were uninteresting and dull. However, after learning about asteroid mining and the potential benefits asteroids could provide Earth, I re-evaluated my standpoint. It… Continue reading

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What is a Quasar?

This brief video explains our current understanding of quasars, and how the generate so much energy and are able to be seen from so far away. As the video discusses, when quasars were first observed in the 1960’s, there was a great deal of interest generated about these distant yet incredibly bright objects. As we […] Continue reading

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Antimatter Spacecraft

Despite the incredible distance to neighboring stars, there are scientists working on spacecraft that can theoretically take us to these distant worlds. One of the most interesting spacecraft concepts for the future is an Antimatter Spacecraft. The fundamentals of this design are outlined in HowStuffWorks’ article, “How Antimatter Spacecraft Will Work”. The article first gives […] Continue reading

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The Northern Lights

  I have always wanted to see the Northern Lights, also known as the aurora borealis.  I never understood what cause the bright colors in the sky until this class.  Upon reading the book I understood that the lights are simply the result of “charged particles trapped in the magnetosphere.”  It is fascinating to me […] Continue reading

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Solar Flares

Learning about solar flares in class has been one of the most interesting things to me.  I think it is amazing how unpredictable they are and how they can affect of Earth.  It is fascinating to me to think about how a solar flare can wipe out our electronic systems.  Our book explains that the […] Continue reading

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