Category Archives: Historical

History of the Telescope

The telescope was first invented in the Netherlands in 1608. Its design quickly spread across Europe until it reached Galileo. Galileo spent years refining and redeveloping the telescope until it was much more powerful than before. He was able to observe many new astronomical phenomena such as the moons of Jupiter. For a while, GalileoContinue reading “History of the Telescope” Continue reading

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Stromatolites

Stromatolites are layered mounds or sheet-like layers of sedimentary rock that were originally forced by growing on a layer of cyanobacteria, a single-cell microbe. Fossilized stromatolites provide a record of ancient life and tidal patterns on Earth. Millions of years ago, seas all over the world would resemble the picture above, which was taken fromContinue reading “Stromatolites” Continue reading

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The Moon’s Tug

Three weeks ago, for my Earth System Dynamics course, I listened to a Radiolab podcast about the distance between the Earth and the Moon. In “The Times They Are a Changin’” paleontologists talk about how coral shells taught us that the Earth used to have shorter days. Their shells have tiny bands, an alternating patternContinue reading “The Moon’s Tug” Continue reading

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The Astronomy behind Astrology

While astrology is widely disproven as a form of science in our modern age, it has its origins in the beginnings of computational astronomy. As explained by David Lindberg in his book The Beginnings of Western Science, “By the end of the fifth century B.C., Babylonian celestial divination had expanded to embrace horoscopic astrology, whichContinue reading “The Astronomy behind Astrology” Continue reading

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The Equinoxes Throughout History

The winter and summer solstices occur as a result of the Earth’s tilt. The summer solstice occurs for a hemisphere when it is facing most directly towards the sun, and this marks the longest time of sunlight for that hemisphere. The winter solstice, is the exact opposite occurrence, resulting in the least amount of timeContinue reading “The Equinoxes Throughout History” Continue reading

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How a Solar Eclipse Revolutionized Our Understanding of the Universe

Up until the early 20th century, the laws that our universe abided by were best described by Isaac Newton in his Philosophiae naturalis principia mathematica. Newton’s principles still hold true for the most part, as they are the basis of many introductory classical mechanics classes today. Despite being able to model the laws of ourContinue reading “How a Solar Eclipse Revolutionized Our Understanding of the Universe” Continue reading

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The Cosmic Calendar

What is the Cosmic Calendar? Carl Sagan, a famous astronomer, promoted this idea of the cosmic calendar, that essentially is a tool used to help people visualize and understand how far apart events in the Universe are. Sagan has chronologically arranged the hallmark events of the Universe’s 13.8 billion year life span into just aContinue reading “The Cosmic Calendar” Continue reading

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And We’re Off, To the Past

Growing up, I fantasized time travel and if it would ever be possible. I watched cartoons and movies that made time travel seem so real. Of course, I got a little older and realized physical time travel would be a thing of the distant future, if it ever comes to fruition. I let the fantasyContinue reading “And We’re Off, To the Past” Continue reading

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The Arecibo Message: Humanity’s Greeting to the Cosmos

To this day, one of humanity’s most loaded questions remains unanswered: are we alone in this universe? Though we have yet to detect the presence of any extraterrestrial civilizations, that has not stopped humanity from attempting to make contact with whatever else might be out there. The most famous attempt to communicate humanity’s existence to … Continue reading The Arecibo Message: Humanity’s Greeting to the Cosmos Continue reading

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Ancient Egyptian Astronomy

The Ancient Egyptians cared a great deal about astronomy. Probably too much, in fact. According to their beliefs, the movements of the planets and stars played a role in the annual flooding of the Nile river, and if you are an Ancient Egyptian, you will do just about anything to appease the Nile, and that … Continue reading Ancient Egyptian Astronomy Continue reading

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