What is the ‘Universe’?
What does ‘the Universe’ mean? If you take note of how we type “Universe”, it starts with a capital letter “U”. Every time we say “Universe”, we are referring to …
Course: Mysteries Of The Universe
Hubble’s Law
In 1925, American astronomer Edwin Hubble showed that the galaxies’ speed has a positive relationship with their distances from Earth. This relationship is called Hubble’s Law, and it served as …
Ancient and Modern Astronomy
Astronomy is actually one of the oldest natural sciences (i.e., science that focuses on the physical world) that ever existed. Just like any other sciences, its conception arose from human …
Direct Detection of Gravitational Waves
One of the current problems that scientists aim to solve is the detection of primordial gravitational waves, which is a crucial ingredient in producing the CMB B-mode polarization. Einstein’s General …
Meet the Team
Meet the Team The course is led by Professor Tomo Goto, a Professor at the Institute of Astronomy, National Tsing Hua University in Taiwan. He received his Ph.D from the …
Prof. Andrei Linde’s Celebration of Inflation
Prof. Andrei Linde was one of the pioneering physicists that realized inflation. He and Alan Guth received the Gruber Prize in Cosmology for their development of the inflationary Universe theory. …
Inflation as Explained by Alan Guth
Alan Guth, as mentioned by Prof. Goto in the previous video about inflation, was one of the men behind the realization of inflationary Universe theory. Many other physicists like him …
Cosmic Inflation and CMB
The inflationary Universe theory predicts various phenomena, such as the almost flat geometry of the Universe and the production of gravitational waves during the sudden expansion of the Universe that …
What is the Inflationary Universe Theory?
The inflationary Universe theory purports that the Universe underwent a short and sudden episode of great expansion right after the Big Bang. This phenomenon is called inflation and is believed …
Energy Conservation in an Expanding Universe
The principle of energy conservation states that energy can neither be created nor destroyed, it can only change from one type to another. The question about energy conservation in an …
How Far can the Hubble Space Telescope See?
We mentioned earlier about Galileo Galilei’s discovery of the Galilean moons of Jupiter thanks to his written works about his observations with his telescope. His discovery became a strong proof …
What is the Future of Astronomy?
There are still more things to discover in the field of astronomy. It is a growing science which will continue to produce discoveries in the coming decades, thanks to the …
Three evidences of Dark Matter – the second and the third evidence
Previously, we learned that the shape of the rotation curve of galaxies tell us that there is dark matter. However, there are two other evidences that dark matter is there. …
Three evidences of Dark Matter – the first evidence
“Just because you don’t see it, doesn’t mean it’s not there!” This is the case for dark matter, a mysterious object that we haven’t detected, yet we believe that it’s …
More about Dark Energy
Just like dark matter, dark energy is there, but we can’t see it. What is it exactly? Prof. Goto will discuss more about dark energy. This video will supplement the …