Category Archives: Universe

Reflection on Astronomy 2110

The biggest thing I will take away from all that I have learned in Astronomy this year is just how small and irrelevant humans are both in comparison to the size and timeline of the universe. I had always heard that the universe was infinitely big but never thought anything of it and didn’t considerContinue reading “Reflection on Astronomy 2110” Continue reading

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Supermassive Blackholes and the Milky Way

In 1993, radio engineer Karl Janksy was recording 20.5 MHz radio waves when he noticed something strange. He could clearly classify majority of the waves received into either distant or nearby thunderstorms. However, there was a third type of static that he could not explain. Janksy put on his detective hat and, after many monthsContinue reading “Supermassive Blackholes and the Milky Way” Continue reading

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The Fermi Paradox

Ever since humans have first become interested in space, the inevitable question of “does life exist outside of Earth” has loomed over us. However, as technology has progressed and humanity has trekked deep into space, the question remains unanswered. This brings about a certain paradox regarding the existence of alien life. The universe is almostContinue reading “The Fermi Paradox” Continue reading

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Blog 6 Aristotle’s cosmology

In this blog, I would like to introduce Aristotle’s model of the universe. The cosmic theory from Aristotle is clearly wrong from the view of modern science. However, before modern astronomy was developed, Aristotle’s ideas about our world dominated people’s belief for thousands of years. It was embraced by scholars, philosophers, and religious leaders asContinue reading “Blog 6 Aristotle’s cosmology” Continue reading

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Galaxies

Galaxies are cosmic Islands of stars, gas, dust and dark matter. They span across very long distances and they are held together by gravity. There are multiple types of Galaxies as shown in the the photo above. The word galaxy is derived from the greek word “galaxias”. It means milky, which is a direct referenceContinue reading “Galaxies” Continue reading

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Kuiper Belt Objects

The Kuiper Belt is a region in the solar system beyond the orbit of Neptune as shown in the photo above. Although they have only scratched the surface, there has been about 2,000 objects discovered so far in the Kuiper belt. It is said to be filled with bits of rock and ice, along withContinue reading “Kuiper Belt Objects” Continue reading

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The Oort Cloud

The Oort Cloud is a collection of comets that orbit the Sun far outside our solar system. One estimation of the number of comets in the Oort Cloud is one TRILLION. Unlike the Kuiper Belt, which lies outside the orbit of Neptune, the Oort Cloud neither lies on the same plane as the bodies orbitingContinue reading “The Oort Cloud” Continue reading

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What Exactly Happened During the Big Bang?

I think the Big Bang is such an interesting piece of the Universe’s creation. An explosion that created everything that we observe right now. While the Big Bang is popularly known, I don’t think many people grasp how quickly and powerfully this explosion happened. For 10-43 seconds, the universe was inside of a microscopic pinpoint.Continue reading “What Exactly Happened During the Big Bang?” Continue reading

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Which Exoplanet Could Be Planet B?

The transit method has already been used to discover a few thousand exoplanets and continues to discover more through both old observations and current missions. With this method, the brightness levels of stars in other solar systems are measured. When the brightness dims, this is a sign that an extrasolar planet may have passed inContinue reading “Which Exoplanet Could Be Planet B?” Continue reading

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Ceres

Unlike recently discovered dwarf planets, Ceres was discovered in 1801. Ceres was the first asteroid discovered, it was first spotted on Jan. 1, 1801 by Sicilian astronomer Giuseppe Piazzi. Ceres was named after the Roman goddess of agriculture. An interesting fact about Ceres was that after it was discovered an element in the period tableContinue reading “Ceres” Continue reading

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