Category Archives: Historical

Why Stars?

Throughout history, many civilizations have been fascinated by the stars in the night sky. But the question is why. Why have many civilizations been fascinated by stars? What makes the night sky so attractive to humans? Why did they ascribe meaning to tiny dots that shone brightly, and seemed so far away? I present the […] Continue reading

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Blog on Chapters 1-2

I always thought that the seasons were caused only because of where Earth is or isn’t closest to the sun. But other things go into it than just distance, since it is only a small part of the reason. The main reason for the seasons is because of Earth’s axis tilt. One of the common […] Continue reading

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Intelligent Life Isn’t About Blind Luck. It’s About Probability.

ARS Technia The thought of other sentient life existing in the universe is one that comes up often. Among the religious crowd, many will argue that Earth’s existence is a perfect result of divine influence, that if just a few things were a bit different, we wouldn’t have evolved as we have done. Yes, we […] Continue reading

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Blog 2— Historical Context: the Ptolemaic Model

The Ptolemaic Model stood as the most accurate way to predict the movement of planets for 1,500 years, even though it was a geocentric model. This obviously serious error in the model caused there to be small inaccuracies in the predictive abilities of the model, but it was the best incorrect model created, so it […] Continue reading

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Kepler’s Laws of Planetary Motion

After meticulously calculating the data that Tycho Brahe collected, Kepler discovered three different laws that described how planets move. Kepler’s First Law – The planets orbit in ellipses, not circles nor epicycles. For majority of history, it was thought that planets orbit through epicycles because the orbit of the planets must be perfect. However, the […] Continue reading

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The Banner of Heaven

This term, originally coined in the late nineteenth century, at least with its current connotation, began to speak to me in a unique way in high school. I took a backpacking trip in Northern California, and experienced a dry, warm, cloudless night with no shelter but a mosquito net. The sky was brilliant, and it felt like […] Continue reading

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Gravity

What is Gravity? Gravity is the physical attraction of masses. The idea that all masses attract each other. Why Does Gravity Happen? Gravity happens due to curvature in spacetime, it bends and warps space and that space causes an attraction between the objects. Facts About Gravity Video On Gravity A January Wolf Moon Continue reading

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Retrograde Motion

Retrograde motion is a fascinating celestial phenomenon that has puzzled astronomers and stargazers for thousands of years. Imagine you were stargazing across multiple nights and traced the planets as they danced across the sky, but suddenly, one of the planets stops, reverses direction, and then after a while, resumes its original motion with the stars. […] Continue reading

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Ancient Structures

Many people have heard about Stonehenge, one of the world’s most famous monuments. But did you know that the circle of stones was actually an astronomical device? Archeoastronomists have debated what the original purpose of Stonehenge was, but many believe that it was used to mark solar and lunar alignments, including eclipses, solstices, and equinoxes. […] Continue reading

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Justin's Blog 2024-02-12 17:22:51

History of Astronomy in Korea! Hey everyone ! Do you guys remember when we were learning about historical astronomical sites in class? I remember one of the sites catching my eye because it looked incredibly familiar. It was the one in Korea called Cheonseongdae in Gyeongju, South Korea. I once visited this while on a […] Continue reading

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