The Solar System 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 … Continue reading I See the Light
Director Boston doing research 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 … Continue reading A Whole New World!
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 … Continue reading A Moon Above the Rest: Jupiter’s Moon Ganymede
The map of the System 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 … Continue reading Saving the Appearances
The Clouds among Venus 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 … Continue reading Second Planet to the Sun
Ancient Scientists In other religions, there was no need for astronomy except for the creation of the calendar. Ancient Pagans used Stonehenge to determine their calendar. In Early Judaism, they created their calendar. For Christianity, although it helped dictate holidays, it had pushback from philosophy and scientific observations. Astronomy played a major role in early … Continue reading Ancient Achievements
Isaac Newton was born on January 4 in 1643 in Woolsthorpe, England and died on March 31 in 1727 in Kensington, England. Sir Isaac Newton contributed to the discovery of gravity, the laws of motion and forces. He also clarified the understanding of optics and invented calculus. The first law is that an object in … Continue reading A Science Lesson in History