Black Holes – Part II

In this second part of the article dedicated to black holes, I will describe how they are formed, as well as the different kinds of black holes the theory has been able to predict.
Formation of black holes
Two different processes can lead to the formation of a black hole: gravitational collapse, …

Dark energy

Back in 1998, two teams of astronomers carried out observations on a particular kind of stars, type Ia supernovae. They had no idea their results were going to completely change the way we see our Universe.
Supernovae Ia are often referred to as ‘standard candles’, because they all achieve the same …

Is our Universe the only one ?

Everyone, when looking up at the sky, has probably been amazed by the vastness of our universe. While its ‘size’ seems impossible to assess, scientists have been suggesting that our universe might not be the only one for quite some time already. The news is that now researchers have found …

No evidence of time before Big Bang

According to an article recently published on Nature’s website, there would not be any evidence of time before Big Bang.
The idea that something could have existed before our Universe came from Vahe Gurzadyan of Yerevan Physics Institute in Armenia and Roger Penrose of the University of Oxford, UK. In their …

The shape of the Universe

The question of the Universe’s shape has been one of the most important in modern cosmology. For many years, there has been a great discussion among astronomers regarding this problem. Today, according to the most up to date measurements, it is widely accepted that the shape of the Universe is …

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