Black Holes

    1. Introduction: Black holes are one of the strangest, mysterious and the most dangerous things in space. These are also the heaviest and have largest mass than anything. We can imagine black holes as black discs or in our daily life black CDs or DVDs. We cannot see black holes usually but we can see them because of rotating disks around them known as accretion disks. We can also see them while exploding or sucking something. 2. What are black holes? Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. A black hole can be formed by the death of a massive star. When such a star has exhausted the internal thermonuclear fuels in its core at the end of its life, the core becomes unstable and gravitationally collapses inward upon itself, and the star’s outer layers are blown away. The crushing weight of constituent matter falling in from all sides compresses the dying star to a point of zero volume and infinite density called the ...

1. Intro:  How was first image of black hole taken? What you see here is the first image of black hole taken from event horizon telescope. Event horizon telescope is a collection of radio telescopes from all over the world. But first 2. What is a radio telescope? Radio telescope is a type of antenna and radio receiver used to receive radio waves coming from astronomical radio sources in the sky which emit strong radio waves. They scan across an object in space and receive radio waves from each spots around that object some spots have stronger radio waves than the rest this data is the stored on pixels and that’s how radio telescopes get the image. And a telescope of this very kind took the first image of black hole. 3. Making the event horizon telescope The basic idea about the way to combine the radio telescopes of all over the world into one telescope that is the event horizon itself. Combining all telescopes around the world wasn’t easy first there should be a pr...