Category Archives: Class

On an Island (Not so) Far, Far Away

Photo: picture alliance / © Fine Art Images/Heritage Imag | © Fine Art Images/Heritage Images Tycho Brahe (December 14, 1546–October 24, 1601) helped to recalibrate old, grossly inaccurate measurements of the stars and the predictions of their movements. He dedicated himself to finding more accurate measurements, and while conducting research at his observatory Uraniborg in […] Continue reading

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Historical Astronomers in Context

Chosen Astronomer Galileo Galilei was born on February 15, 1564, in Pisa, Italy. He died on January 8, 1642, in Arcetri, Italy. You can find more great information about him here. Historical events The first Japanese invasion of Korea happened in 1592. As a response, Ming China sent an army to Korea to ward off […] Continue reading

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Old Space Dudes

You may be wondering… why is there a football? Good question. You will see. Anyways, we’re talking about old dudes who studied the sky. Doesn’t sound very interesting, right? But some of them were pretty cool. I mean, not like Hannibal riding elephants cool, but about 2 log scales below that. Anyways, we got some […] Continue reading

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Historical Astronomers in Context: Galileo Galilei

The Astronomer Born in late 16th century Italy, Galileo Galilei (February 15, 1564 – January 8, 1642) went on to make fundamental contributions to STEM fields and laid the foundations for the scientific revolution. In the field of astronomy, he improved upon existing designs for the telescope. Galileo’s improvements made the tool much more powerful […] Continue reading

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To Be Circular, or Elliptical: That Was Kepler’s Question

Johannes Kepler was an astronomer and mathematician best known for his development of the three laws of planetary motion. The first reflected a major upheaval in astronomical thought at the time: that planetary orbits are elliptical, with the Sun located at one of each orbit’s two foci, rather than perfectly circular. The second is that […] Continue reading

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The Cosmic Calendar 🪐

“We humans appear on the cosmic calendar so recently that our recorded history occupies only the last few seconds of the last minute of December 31st.” -Carl Sagan The Cosmic Calendar is a concept presented by famous astronomer Carl Sagan. In this diagram, the 13.8 billion year history of the universe is condensed into a […] Continue reading

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We Were the Closest To the Moon than We Have Ever Been

As a child, I spent a considerable time looking at the Moon, and at one point, I may have even believed it was my friend. From the backseat of many late-night car rides, it “followed me”. In fact, during this period, my mornings consisted of watching Bear in the Big Blue House and the character […] Continue reading

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The “Ten”ets of the Universe

Our brains struggle to comprehend the magnitude of our universe. We make comparisons based on that which we can see, yet it is totally inadequate to what reality holds. For example, the average person is just under 2 meters tall. But their size of the Earth when compared to that is substantial. The mean diameter […] Continue reading

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The Ultimate Race

We take it for granted that the speed of light is the universal speed limit; nothing can go faster than light. The knowledge of light-years is crucial to understanding the images that we see in the night sky. These images are not of the celestial bodies as they currently exist, but as they once were, […] Continue reading

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The Incredible Size of Our Universe

The image above is an artist’s illustration of everything in the observable universe. I find this image very interesting as it shows the scale increasing starting with our solar system and going out to galaxies, superclusters, our local group and further. This makes me realize how small we truly are in comparison to the universe […] Continue reading

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