Space News for Everyone

B lack holes are very mysterious things in the universe. Before the discovery of black holes they were just mathematical construct of Einstein's General Relativity also known as Einsteins Theory of Gravity. According to this theory, when the gravity is strong enough, the singularity will form. In other words singularity is the point where some property is infinite. That is a region with a infinite energy density. When this happens, there is a region or notional boundary which is no particles even no light or any other radiation can escape. This region is called the event horizon of a black hole. Although we cannot see the black hole's event horizon due to no light is emitting, there is a way of watching at glowing gases around the black hole. It creates a bright ring like structure. Although that is the case the surrounded gas and dust particles prevent the sight of seen it. Black holes cannot be seen from optical telescopes and only we can see by using radio telescopes. So low...

T oday I am going to talk about the differences between Machine Learning, AI, ANN, Mathematical models, and few libraries that can use to program using python. In most of the time, we get confused about the terminology of Machine Learning. This is the main reason that we cannot understand Machine Learning even we know how to code them. Machine Learning (ML) is a subset of Artificial Intelligence (AI). The Machine Learning has subsets such as Artificial Neural Networks (ANN) and Mathematical Models.  ANN can be categorized in to following two types, Shallow feed forward Neural Network Deep Neural Network (Also known as Deep Learning) Shallow feed forward Neural Network has only one hidden layer while Deep Neural Network has multiple hidden layers. That is shown in the figures bellow. Shallow feed forward Neural Network Deep Neural Network (Deep Learning) The following figure shows how these areas relate to each other, Mainly there are two types of machine learning libraries can be u...

P ulsars are type of neutron stars. And they emits radio beams across the Universe. They are made out of neutrons and they are highly magnetized. The size of a Pulsar could be about 1km of radius but the weight is many times larger than our Sun. They are actually remnants of star explosion such as super nova explosions. As I said before they are highly magnetized objects in the space and at the magnetic poles of the neutron stars the radiation emission happens throughout the universe. These neutron stars are spinning in high speeds. Some are spinning in hundreds of times a second around its spinning axis. When they spin around its axis, the radian beams spread across the universe like a light beam in a light house. And if we are in the line of sight, we can observe the radian beam. But they are not visible to the naked eye. To observe these pulsars, we can use large radio telescopes or radio antenna arrays.      Radio Telescopes (Credit: pixabay.com)   They are very ...

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Hi Everyone, I am Ashan Uyangoda. I am Astronomy Enthusiast and Electronic Engineer. This is my blog and it contains details about Astronomy news, Electronics news, Radio Astronomy, Coding Python for Astronomical Analysis, tutorials etc.