Category Archives: Light

Humans and Light Speed

Posted on January 22, 2024 by The Cosmic Traveler

by me The speed of light is around 300,000,000 meters per second. It’s so fast that it can circle the Earth 7.5 times in one second. I always wondered if humans can ever achieve speeds the same as light, but we’ve only managed to go 176,462 meters per second with the Nasa Parker Solar Probe. […] Continue reading →

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Speed of light in Space

Posted on January 22, 2024 by Andres Becerra

Picture by: FlashMovie/Shutterstock Light moves pretty fast. It actually moves the FASTEST out of anything that we know of (for now). Light moves at about 300,000 kilometers per second. When I’m in a rush on the freeway, I drive up to 145 kilometers per hour (90 miles per hour) which is only 0.04 kilometers a […] Continue reading →

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The Speed of Light/Light Travel Time – Cameron Klein

Posted on January 21, 2024 by Cameron Klein

Before beginning this course, I was familiar with the term light-year, but not in the way that it is truly meant to be used. When talking to members of my family, it is a common expression for us to say, “It’s going to take me lightyears to clean my room!” or “Doing my laundry is […] Continue reading →

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Blog 1: size of the universe

Posted on January 18, 2024 by matthewastro

The size and scale of our universe is nearly incomprehensible. While many comparisons have been formulated to describe certain cosmological distance (such as from the Earth to the Moon, and so on), I believe that only one can even claim to do justice to the size of the universe. To gain even a slight comprehension […] Continue reading →

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The Limitations of Light Speed

Posted on May 3, 2023 by jackdoyle25

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 →

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Blog #8 – Black Holes and How to Find Them

Posted on April 30, 2023 by constellationsarentreal

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 →

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The Event Horizon Telescope

Posted on April 11, 2023 by jackdoyle25

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 →

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A Tiny Black Hole?

Posted on April 10, 2023 by alicebyrnes

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 →

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Why is Jupiter the way it is?

Posted on April 9, 2023 by cuia2

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 →

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Time Dilation and the Theory of Relativity

Posted on March 7, 2023 by Europa

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 →

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