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Tag Archives: space
Martian Lakes
With the intimate connection between water and life, the discovery and understanding of water on Mars has been a crucial point of research that is continuing to be updated. Although there is no liquid water on the surface of Mars, there is water in the form of ice in polar caps and glaciers. If allContinue reading “Martian Lakes” Continue reading
Posted in Aliens, Class, SolarSystem
Tagged astro2110, blog4, Mars, Rover, Solar System, space, water
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Is the Moon actually made of cheese?
Unfortunately, the answer is no. However, the story of why the Moon’s surface looks the way it does it still an interesting one and one that helps us understand the solar system as a whole. The surface of the Moon most closely resembles that of Mercury (due to the lack of geological activity that comesContinue reading “Is the Moon actually made of cheese?” Continue reading
Posted in Class, Moons, SolarSystem, Universe
Tagged astro2110, blog3, Moon, Solar System, space, Time
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Tidal Friction: a 5 hour long day to a month long day
Due to the Universal law of gravitation, we know that objects of equal mass have a larger gravitation force between them when they are closer together. Because the near side of the Earth is closer to the Moon than the far side of the Earth, the force between the Moon and the near side ofContinue reading “Tidal Friction: a 5 hour long day to a month long day” Continue reading
Hello!
My name is Nolan Siegel, and I am looking forward to blogging this semester! I’m a student at Vanderbilt University studying political science and economics (with minors in astronomy and scientific computing), and I like asking big questions about the universe and my place within it. ASTR 2110 is my fourth astronomy course, and IContinue reading “Hello!” Continue reading
Extremophiles, and What They Mean For Life in Space
Extremophiles are organisms on Earth that thrive in extreme environment that most other organisms wouldn’t be able to survive in. They are found in places that at a glance, seem unlivable, places like inside volcanoes, or deep in the ocean under extreme pressures. So why do these extremophiles matter when thinking about space? The ideaContinue reading “Extremophiles, and What They Mean For Life in Space” Continue reading
Posted in Class, Galaxies, Moons, Stars
Tagged astro2110, blog6, jupiter, life, life in space, planets, pluto, Solar System, space, Uncategorized
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Life on Europa?
When considering the likeliest hosts for extraterrestrial life in our very own system, Europa surely is near the top of possible candidates. One of Jupiter’s 79 (!) moons, it possesses the smoothest surface of any celestial body in the solar system. Because of this and imaging from probes, scientists have hypothesized that Europa has aContinue reading “Life on Europa?” Continue reading
Why is Pluto No Longer a Planet?
It’s no secret Pluto has been out of the privileged circle of celestial bodies to be considered planets for over a decade now. But many don’t realize what events led to this ousting, and the reasonings for doing so. Pluto had long since been considered a planet since its discovery in the 1930’s. Yet startingContinue reading “Why is Pluto No Longer a Planet?” Continue reading
Could There be Life on Europa?
Europa is one of Jupiter’s Galilean moons, meaning it’s one of the four largest moons that orbit Jupiter. What makes it particularly special is that it is considered one of the most likely places in our solar system (outside of Earth) that might contain life. Now, at a glance, it seems like that shouldn’t beContinue reading “Could There be Life on Europa?” Continue reading
Gravitational Waves
Gravitational waves are a fascinating concept. The thought starts from the idea that gravity moves at the speed of light. Now, at the start this sounds like a silly idea. Doesn’t the force of gravity always act on people? Yet take this example. Say the sun were to simply disappear. Not explode or change, butContinue reading “Gravitational Waves” Continue reading
Posted in Class, Galaxies, Sun
Tagged astro2110, Black Holes, Einstein, gravity, light-speed, space
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The Revolutionary James Webb Telescope
In a previous post, I wrote about the Hubble telescopes revolutionary Hubble Legacy Field image. This ended the era of Hubble, which was the source of most of the discoveries of our solar system over the past decades. The new James Webb telescope is now set to be put into orbit in 2021, and itContinue reading “The Revolutionary James Webb Telescope” Continue reading