Gravitational Wave Astronomy
Gravitational waves are the future of astronomy! Many recent breakthroughs in astronomy involve the study of gravitational waves. These peculiar waves were predicted by Einstein in 1916. And in 2015, …
Course: Mysteries Of The Universe
Olbers’ Paradox: Solution
Is the Olber’s Paradox correct or not? Let us find out in Prof. Goto’s video if the paradox is correct or not. Is your answer similar to that of Prof. …
Olbers’ Paradox: Problem
“If there are so many stars in the sky, then the night sky shouldn’t be dark, right?” Does this question make sense to you? This is called the Olber’s Paradox, …
Introduction: How much we don’t know about the Universe.
“I know that I know nothing” – Socrates Many years ago, people have different concepts about our Universe. For instance, various mythologies from different countries (e.g. India) had believed that …
What is the Difference Between Dark and Baryonic Matter?
Dark and baryonic matter are believed to be two completely different substances, with the former still being a mystery as to its true identity and composition, while the latter being …
Is CMB Visible from Earth?
Ground-based telescopes are able to observe CMB, but they are limited by certain factors such as atmospheric disturbance and artificial illumination. However, many advancements have allowed ground-based telescopes to also …
How can we detect dark energy
There are many experiments already for detecting dark matter, but in this article, we will only mention a few of them. The main idea on how to detect dark matter …
Galaxy classification in Galaxy Zoo
When you look up the sky, you see stars and galaxies. However, their appearances are not what they are now, but what they were when the light was emitted, because …
How can we detect dark matter
Previously, we have discussed the three main evidences of the existence of dark matter and some of the possible candidates for dark matter. However, considerable effort is still needed to …
Gravity Spy
In this section, you will be asked to visit Gravity Spy, which is similar to what we classify galaxy based on morphology in Week 2. There are a host of …