Category Archives: Observables

Are Extremophiles Our Roommates?

Extremophiles are microorganisms that can survive in extreme conditions, such as high temperatures or great acidity. A recent study has found extremophiles in a location much more familiar to us, and it’s actually in the homes of humans. The study took samples from water heaters across all 50 states. Around 50% of the tested samples … Continue reading Are Extremophiles Our Roommates? Continue reading Continue reading

Posted in astro2110, blog6, Earth, extremophiles, microbes, Observables, science | Comments Off on Are Extremophiles Our Roommates?

A Whole New World!

Because the caves, mines, and crevasses on Earth are filled with extremophiles, NASA uses those lifeforms as a guide to its exploration of the universe. The hidden parts of the planet have to make their own way of survival. Surface life has photosynthesis, but subsurface only a tiny fraction of that energy trickles down so … Continue reading A Whole New World! Continue reading Continue reading

Posted in astro2110, astrobiology, blog6, Class, extremophiles, General, NASA, Observables, Terrestrials | Comments Off on A Whole New World!

Comet tails: an origin story

4.6 billion years ago, our solar system was just a big cloud of gas and dust. A lot of it gathered together and formed the sun. Most… Read more “Comet tails: an origin story” Continue reading Continue reading

Posted in astro2110, blog5, Comets, Observables | Comments Off on Comet tails: an origin story

A Moon Above the Rest: Jupiter’s Moon Ganymede

Galileo Galilei discovered many “luminous objects” in 1610 that were orbiting Jupiter. Thought to be stars, it was discovered that they were moons: Io, Europa, Ganymede and Callisto. Ganymede is the largest moon in the Solar System and is even larger than the planet Mercury. It is the only satellite in the Solar System known to possess a … Continue reading A Moon Above the Rest: Jupiter’s Moon Ganymede Continue reading Continue reading

Posted in astro2110, blog5, Class, General, Jovians, jupiter, Moons, Observables | Comments Off on A Moon Above the Rest: Jupiter’s Moon Ganymede

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 Continue reading

Posted in Aristotle, astro2110, blog4, Class, General, Historical, Observables, Universe | Comments Off on Saving the Appearances

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 Continue reading

Posted in astro2110, Observables | Comments Off on A New Non-Aurora!

You Honestly Believe We Live On A Ball?

The Earth is flat, and if you disagree you are blinded by science… In this blog post I’m going to unpack some of the most convincing arguments for a flat Earth, and provide a hopefully reasonable scientific response to these questions. Look with your own eyes, look off into the horizon, if the earth is … Continue reading You Honestly Believe We Live On A Ball? Continue reading Continue reading

Posted in astro2110, blog4, Observables | Comments Off on You Honestly Believe We Live On A Ball?

History of Constellations

Long before history has been recorded, humans have studied the stars in the night sky. Although we have looked at stars for thousands of years, it wasn’t until 1930 that the 88 constellations were officially named by the International Astronomical Union. 48 of these constellations were named by Ptolemy in his book The Almagest in … Continue reading History of Constellations Continue reading Continue reading

Posted in astro2110, blog4, Constellations, Historical, Observables, Stars | Comments Off on History of Constellations

Gravity Waves

Venus is the unfortunate victim of a runaway greenhouse effect. Not only does this make the planet uninhabitable, it also causes a tremendous degree of difficulty in observing the planet’s surface. However, there are many interesting things to gain from Venus by just looking at the atmosphere, including a massive gravity wave. Gravity waves in … Continue reading Gravity Waves Continue reading Continue reading

Posted in astro2110, Atmosphere, blog4, gravity, Observables, physics, Solar System, Space travel, Terrestrials, venus | Comments Off on Gravity Waves

How to Find Orion in the Night Sky

One of the most famous and recognizable constellations, Orion is most visible in the evening sky, winter in the Northern Hemisphere. It was named after a hunter in Greek Mythology, Orion. Rigel, a blue-white supergiant, and Betelgeuse, a red supergiant, are the brightest stars in Orion. Thousands of newly formed stars can be found in … Continue reading How to Find Orion in the Night Sky Continue reading Continue reading

Posted in astro2110, blog4, Class, Observables, orion, Stars | Comments Off on How to Find Orion in the Night Sky