Author Archives: Charles Knoll

Blog 8: Astronomy in the Future

After taking this course, I am extremely excited to stay updated and learn more about astronomy and any news that comes out in the future. Now that I understand a lot more about how our solar system works, I am excited to read more and more about new findings in the world of astronomy. I […] Continue reading

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Blog 7: Interstellar Travel

In movies, spaceships often travel at the speed of light, but in reality, we are far from achieving this. Our fastest spacecraft only reach 1/10,000 of the speed of light taking them about 100,000 years to get to the nearest star system. Moreover, the spacecraft we’ve sent so far aren’t even headed towards Alpha Centauri due to […] Continue reading

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Blog 6: Asteroid Size

Asteroids, with their varied shapes and sizes, are fascinating objects of the solar system. Their shapes are largely dictated by gravitational forces, with larger asteroids having enough gravity to form into roundish objects. These space rocks are riddled with craters due to many collisions over time. Among them, Ceres stands out as the largest, with a diameter just under […] Continue reading

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Blog 5: Pluto and its Largest Moon

Pluto, situated 40 astronomical units (AU) from the Sun, orbits the Sun every 248 years. Its path stands out due to its highly elliptical shape and inclination relative to the ecliptic plane, distinguishing it from the other planets. Pluto is orbited by five moons, with Charon being the largest and most notable. Charon orbits Pluto […] Continue reading

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Blog 4: Space Telescopes

Telescopes play a pivotal role in deepening our understanding of the universe. While many telescopes are positioned on Earth, those placed in space afford us a more profound insight into the universe. Stationed beyond the Earth’s atmosphere, space telescopes capture clearer images of the cosmos. The Earth’s atmosphere, which blurs images and only permits radio […] Continue reading

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Blog 3: Our Sun and Nuclear Fusion

The sun releases energy through a remarkable process known as nuclear fusion, which unfolds under the extreme temperatures and densities found deep within its core. Unlike the nuclear fission reactions used on Earth, which split atomic nuclei to release energy, the sun’s energy is generated by combining smaller nuclei into larger, heavier ones. This fusion […] Continue reading

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Blog 2: Tides

Tides represent the ebb and flow of ocean waters, orchestrated by the gravitational influences of both the moon and, to a lesser degree, the sun. As the moon orbits the Earth, its gravitational force interacts with our planet. Despite the moon’s relatively small mass, its gravitational pull, although not immense, varies across the Earth’s surface […] Continue reading

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Historical Astronomers in Context

Johannes Kepler (1571- 1630) Johannes Kepler was an important contributor to astronomy after he created the three laws of planetary motion. The first law states that planets move in elliptical orbits around the sun, and the second law states that planets move faster in their orbits when closer to the sun. Lastly, the third law […] Continue reading

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Blog 1: Our Expanding Universe

Our expanding universe is a captivating cosmic phenomenon that continues to unfold in the vastness of space. Galaxies throughout the cosmos are in a state of expansion, distancing themselves from one another as space itself expands between them. From our vantage point on Earth, nearly every galaxy beyond our Local Cluster is gradually moving away […] Continue reading

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