Blog 8—A fictional explanation to the Fermi paradox

As we learned from our class, there are several possible explanations to the Fermi paradox. One of them is that the aliens are hiding from us. For this blog, I would like to share a fictional theory in the novel “The Three-Body Problem.” In this book, the author expands the idea that aliens are hidingContinue reading “Blog 8—A fictional explanation to the Fermi paradox”

Blog 6 Aristotle’s cosmology

In this blog, I would like to introduce Aristotle’s model of the universe. The cosmic theory from Aristotle is clearly wrong from the view of modern science. However, before modern astronomy was developed, Aristotle’s ideas about our world dominated people’s belief for thousands of years. It was embraced by scholars, philosophers, and religious leaders asContinue reading “Blog 6 Aristotle’s cosmology”

Blog 4—Plato’s cosmology

In this blog, I would like to introduce the cosmology of the ancient Athenian philosopher Plato. His cosmology was the first systemic and complete cosmology in the history. He and his most famous student Aristotle both hold the geocentric view of the universe, and their perspectives of the universe were influential in the following thousandsContinue reading “Blog 4—Plato’s cosmology”

Blog1– the vast size of the universe

I am very excited to share this size comparison video of the universe, which I accidentally discovered last year. I watched this video for many times afterwards, and I could not stop myself gasping with astonishment at the vast size and the scale of the celestial bodies in the universe and the universe itself. ThisContinue reading “Blog1– the vast size of the universe”