In an article, published on phys.org called “Astronomers measure universe expansion, get hints of ‘new physics” by perfectly correlates with our 17th conceptual objective on how astronomers know that the universe is expanding and how they determine the age of the universe. To start off, the article begins talking about how astronomers just made another single measurement of the Hubble Constant. Furthermore, the article explains the Hubble Constant is the rate the universe is actually expanding, ages of the universe, and distance to remote objects. Next, the article talks about how the Hubble Constant is able to determine this rate. Also, the articles talks about that our universe is mostly comprised of dark matter and that dark energy is what pedals cosmic expansion towards the universe. Another, thing the article talks about on how astronomers were able to get the Hubble Constant. The article says that “The H0LiCOW astronomers measured the Hubble Constant by exploiting massive galaxies that act as “gravitational lenses,” bending light from a yet more distant object” (phys.org). They do this by studying quasars. Furthermore, the article tells us that they studied three different galaxies that are able to bend light to even greater distance quasars. To conclude, the article talks about how there maybe hidden physics that are beyond the Standers Model of Cosmology that are troubling astronomers to get more accurate measurements.
This article perfectly correlates with our latest conceptual objective because of the material that was learned through our class discussions. In, our class discussions we learned that the Hubble Constant is the value for the expansion rate of our universe at a current state. In, the article they tell us how they are using the Hubble Constant to get more accurate measurements of the expansion of the universe. Currently, they are making these assumptions through the usage of measuring quasars and how light is interacting with them. Also, the article discuses that the universe mostly consists of dark matter and dark energy which correlates on how the universe is constantly expanding. In, which I learned in our textbook for the course that the universe is most promised with dark matter and energy. Furthermore, the textbook told us that age of the universe is over 14 billion years old. Due, to all of this it shows how old the universe really is and how the universe is constantly expanding.
Overall, because of the article, textbook, and classroom discussions I was able to get a better understanding of the expansion of the universe. The article perfectly gave me a better understanding by giving me details of the Hubble Constant and how they exactly getting these measurements. Also, the article was able to teach me on exactly what the universe is primarily consisted of and how the universe is constantly expanding. The combination of facts from the class room discussions and applying these facts with the article gave me a full understanding of the constant expansion of our own gigantic universe!