Category Archives: General

What’s up with the tropics?

Posted on February 7, 2020 by Avery Bradley

Latitude and longitude coordinates are seen everywhere; they’re immensely useful for marking geographic location and helping with navigation. The system is simple enough: latitude is distance north or south from the equator and longitude is distance east or west from the Prime Meridian. But what are the Tropics of Cancer and of Capricorn that areContinue reading “What’s up with the tropics?” Continue reading →

Posted in General | Tagged , , , | Comments Off on What’s up with the tropics?

The Beginning: A Little More of Me

Posted on January 13, 2020 by Jonah

Welcome to the inaugural post to Jonah’s Astronomy Interests! Just to start, here are some things about me because why not: I’m from St. Louis, Missouri (if you couldn’t tell from the picture above) and I wish I could’ve minored in astronomy but physics wasn’t the move. Another thing to share: I love when I’mContinue reading “The Beginning: A Little More of Me” Continue reading →

Posted in General, Science | Tagged , | Comments Off on The Beginning: A Little More of Me

Finale – Culminate Post

Posted on April 27, 2019 by luanaisaac1125

I learned much more than I thought I would in this course. Before taking this class, all I really knew about our solar system was that there are 8 planets (and Earth is the third one), the asteroid belt is a thing, Jupiter is big, and Saturn is the planet with pretty rings. I didn’t … Continue reading Finale – Culminate Post → Continue reading →

Posted in Class, General | Tagged , , | Comments Off on Finale – Culminate Post

I See the Light

Posted on April 24, 2019 by reallyroyalqueen

An amazing part of the class this semester was the ability to understand and correct some of the misconceptions that I have held about the Solar System for years. Whether it was about the ‘dark’ side of the moon, the brightness of the North Star, tides, the asteroid belt being hard to navigate through, or … Continue reading I See the Light → Continue reading →

Posted in Class, General, Science | Tagged , , , | Comments Off on I See the Light

A Whole New World!

Posted on April 24, 2019 by reallyroyalqueen

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 →

Posted in Class, General, Observables, Terrestrials | Tagged , , , , | Comments Off on A Whole New World!

Eight Planets or Nine?

Posted on April 7, 2019 by epiphany9

Most of us probably remember a time when the Solar System had nine planets, with Pluto as the ninth and (usually) farthest from the Sun. In 2006, following the discovery of Eris, the International Astronomical Union (IAU) voted to reclassify Pluto as a “dwarf planet” (don’t forget the quotation marks!). However, there might one day […] Continue reading →

Posted in General | Tagged , , | Comments Off on Eight Planets or Nine?

A Moon Above the Rest: Jupiter’s Moon Ganymede

Posted on April 2, 2019 by reallyroyalqueen

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 →

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

Saving the Appearances

Posted on March 12, 2019 by reallyroyalqueen

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 , , | Comments Off on Saving the Appearances

Second Planet to the Sun

Posted on March 12, 2019 by reallyroyalqueen

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 , , , , , | Comments Off on Second Planet to the Sun

Newton’s Law of Gravitation and General Relativity

Posted on February 10, 2019 by richardficek

Isaac Newton’s law of universal gravitation first appeared in the Philosophiæ Naturalis Principia Mathematica in July 1687. It describes why that apple fell on Newton’s head (as some stories would have it), why we stay rooted to the ground (without drifting off into space), and why the Earth is locked in orbit around the Sun (among … Continue reading Newton’s Law of Gravitation and General Relativity → Continue reading →

Posted in Class, General | Tagged , , , | Comments Off on Newton’s Law of Gravitation and General Relativity