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Daily Archives: March 12, 2019
Jovian Planets
Jovian planets always interested me. The term “Jovian” is naturally everyone’s first guess – derived from the Latin root, Iovis, or Jovis. It’s a 3rd declension, genitive singular noun, so any classics nerds should know that it very specifically translates to OF Jupiter. I don’t know, I just find it interesting that an entire class … Continue reading Jovian Planets → Continue reading
A Brief, Incomplete History of “Earth”
When looking at our solar system, it is pretty easy to notice one thing that separates Earth from the other planets with which we share a star. Namely, Earth is the only planet not named after a Roman deity. You have Mercury, Venus, Mars, Jupiter, Saturn, Neptune, Uranus, and even Pluto! So where does “Earth” […] Continue reading
Saving the Appearances
Strict Aristotelian cosmology follows that all bodies are made of the four elements: earth, water, air, and fire. These four exist in the terrestrial realm and the stars exist in the celestial realm. A fifth element, aether, exists there and that is what heavenly bodies are composed of. Aristotle provided the basics of the physics … Continue reading Saving the Appearances → Continue reading
Posted in Class, General, Historical, Observables, Universe
Tagged aristotle, astro2110, blog4
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Climate Change
Climate change is predominantly caused by the greenhouse effect, which is when gases in our atmosphere prevent heat from the sun from escaping the Earth. As greenhouse gasses continue to be added to our atmosphere (primarily by burning fossil fuels), the greenhouse effect becomes more severe, allowing less and less heat to escape from our … Continue reading Climate Change Continue reading
Solar Flare vs Solar Prominence
I obviously can’t speak for anyone else, but I whole-heartedly believed that the beautiful loops of material that we sometimes see images and videos of on the Sun were included in the term ‘solar flare.’ As I looked into it, I came to find that solar flares and solar prominences (the ‘loops’) are in fact … Continue reading Solar Flare vs Solar Prominence → Continue reading
Posted in Class
Tagged astro2110, blog4, solar flare, Solar System: Sun
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Saturn’s Rings and Shepherd Moons
One topic regarding Saturn’s rings that I found extremely interesting was the concept of its Shepherd Moons and how they contribute to the uniformity of the rings. If my understanding and memory are correct, this phenomenon is governed by conservation of energy. Essentially, the moons are on opposite sides of the ring, where the moon … Continue reading Saturn’s Rings and Shepherd Moons → Continue reading
Posted in Physics, Planet Rings, Science
Tagged astro2110, blog3
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Second Planet to the Sun
The planet Venus is named for the Roman goddess of love and beauty. It is the second largest terrestrial planet. It is also the second brightest natural object in the sky. Venus’ apparent magnitude of -3.8 to -4.6 makes it visible on a clear day. Venus’ atmosphere can be divided into two layers: the cloud … Continue reading Second Planet to the Sun → Continue reading
Posted in Class, General, Sun
Tagged astro2110, Atmosphere, blog3, planet, Solar System, venus
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Nuclear Fusion
Nuclear fusion is where two nuclei combine resulting in a displacement of energy. The fusion of hydrogen atoms into helium specifically is what powers the energy output of the sun. This can only occur under the most extreme conditions – typically, the positively charged nuclei of two atoms repel each other quite strongly, and … Continue reading Nuclear Fusion Continue reading
A Look Inside the Terrestrial Worlds
Though we do not currently have the means to see directly inside the Earth (or any other planet), we can use clues to make inferences about what may be lying beneath their surfaces. On Earth and the Moon, our most helpful data stems from the analysis of seismic waves, or vibrations that travel along the … Continue reading A Look Inside the Terrestrial Worlds → Continue reading
Posted in Class, Terrestrials
Tagged astro2110, Solar System
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A New Non-Aurora!
Photographers had known about it for decades, but scientists didn’t get wind of it until 2016. It’s a streak, purple or white, across the night sky. It… Read more “A New Non-Aurora!” Continue reading