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Category Archives: Light
The Limitations of Light Speed
As we all (hopefully) know, nothing can travel faster than the speed of light. Light-speed is the universal speed limit, and no matter or energy can move faster than it, including radio signals or other forms of communication. This limitation makes me rather pessimistic about deep-space exploration. The Milky Way Galaxy is massive, at tens […] Continue reading
Blog #8 – Black Holes and How to Find Them
Black Holes are quite a popular topic in astronomy, but I still would like to talk about them for my last post, since they are truly revolutionary. Black Holes, in short, are gravity’s ultimate victory over stars. After a star supernova explosion, the core of a star remains. But if this core weighs more than […] Continue reading
The Event Horizon Telescope
We’ve spent the semester so far studying the greatest discoveries and breakthroughs in the history of astronomy, from as long ago as Copernicus to as recent as the New Horizons flyby of Pluto. Even more recently, however, an astronomical breakthrough was made that will surely be the subject of textbook pages and lecture slides in […] Continue reading
Posted in Light, Physics, Universe
Tagged astro2110, Black Holes, blog6, telescopes
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A Tiny Black Hole?
Black holes have always fascinated me, so here I am, writing a second blog post about them. I recently read a sci-fi novel that involved a man-made black hole. It was incredibly massive, but only the size of a pinprick. This led me to wondering, what are the smallest black holes we’ve discovered in real […] Continue reading
Why is Jupiter the way it is?
Have you ever wondered why Jupiter looks so colorful? Well look no further than Jupiter’s atmosphere, where you’ll find similar and yet different features from Earth’s own atmosphere. Jupiter’s atmosphere consists of the thermosphere, stratosphere, and the troposphere, much like Earth’s atmosphere, yet where they differ is what each layer consists of. Jupiter’s thermosphere is […] Continue reading
Posted in Class, Jovians, Light
Tagged astro2110, Atmosphere, blog6, jupiter, Solar System
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Time Dilation and the Theory of Relativity
With our totally unrestricted guidelines on Blog 4, I would like to make a bit of a deviation from the content of our course and discuss time dilation and the theory of relativity! When I first learned about time dilation, which refers to the difference in elapsed time as measured by different clocks due to […] Continue reading
The Other Side of a Black Hole
Based on Einstein’s theory of relativity, black holes have a theoretical opposite know as “white holes”. Rather than it being impossible for matter to exit (as is the case with black holes), it would be impossible for matter to enter a white hole. Physically, it would look very similar to a black hole: the only […] Continue reading
The Atmosphere as we know it
The atmosphere is split into four different layers: the troposphere, the stratosphere, the thermosphere, and the exosphere. The troposphere is the lowest layer and is where greenhouse gasses absorb the infrared light and where storms occur. The stratosphere absorbs solar ultraviolet light by ozone, Earth is the only planet to have this layer. The thermosphere […] Continue reading
Posted in Class, Light, Terrestrials
Tagged astro2110, Atmosphere, blog4, earth, Solar System
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The Moon Illusion
We saw a really cool picture of the Moon during class that was taken when it was near the horizon with an ancient Greek temple in front of it. The Moon looked unusually large, and I wanted to know more. The reason for the Moon appearing much larger when it is rising and setting is […] Continue reading
Posted in Class, Light, Observables
Tagged astro2110, blog4, earth, Moon, Solar System: Moons
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Evidence for Understanding
I want to talk about an aspect of light that doesn’t make the most sense to me, and that is how we receive it. Thinking about sight abstractly, we cannot really comprehend at all times what we are seeing are particles of light. To us, our visual environment is our reality. Learning about how the […] Continue reading