AstroMe

Hey guys, get ready for the next trip with AstroMe.   Till now we have learned everything about black holes except the effects caused by them. Cmon pack your bags, let's see what happens when we go to an area near the black hole where the gravitational force is not intense. We know that the gravitational force near a black hole is very high compared to the force in empty space. Let's try getting into an area near the black hole where the gravitational pull is less intense.  In this region, the gravitational force becomes high around the boundary of the black hole and the force outside is less. This difference in the gravitational force causes the body of the person to stretch like spaghetti. Yes! You heard it right! This also has a name. Interesting isn't it? This process is known as the Spaghettification or Noodle effect. Extra Information: There is a formula that allows us to calculate how long our trip will take to get from the event horizon to the singularity at the cen...

 Welcome back to AstroMe guys! Now imagine stars colliding with each other to form a black hole. This formation is not visible to naked eyes because no light or radiation can reach any person at a distance from the black hole.  Even the gravitational collapse of a star would not be visible to a distant observer. Have you ever wondered whether a person can escape the singularity and go inside a wormhole? Before we answer this question. Let me tell you what a wormhole is.  A wormhole is nothing but the link between 2 points in spacetime. The above image would give you more clarity. It can connect even to a different universe or some other part of the same universe.   A person would not even know whether there is a singularity ahead of him until he hit it. Just understand singularities always lie entirely in the future or entirely in the past!  The  NO HAIR THEOREM  got its name because black holes don't have hair. What I mean is that ou...

Welcome back to AstroMe guys! In my next consecutive posts, we will look into different types of black holes.  Black holes can be divided according to their mass and  properties.  In this post, we will be discussing the classification of black holes based on their mass. There are 4 types of black holes depending on their mass.  Stellar-mass black hole  Supermassive black hole Intermediate black hole Miniature black hole Stellar-mass black hole : Stars have mass of less than about 100 times the mass of the sun. Once the star runs out of its fuel, the core rapidly collapses to form a supernova explosion and these explosions give off lots of gamma rays so they are also known as hypernova explosions .  To know more about what happens when a star runs out of fuel check out my previous post: what happens after star die   So, when a hypernova explosion takes place, there is a high possibility of this turning into a neutron star because its mass is equal to t...

  Welcome back to AstroMe! I guess it would be perfect to call” The black hole series”. So in this series, we have already looked into what is black hole, how is it formed and what happens after a star dies. If you haven’t looked into it yet, click on  AstroMe . This time we are going to see about event horizon (the boundary of a black hole). Black holes have a boundary called the event horizon ; it is the boundary of no escape. It is the place where the light particles where about to escape but ultimately it couldn’t. For anything including humans to escape the event horizon, we must have velocity that exceeds the speed of light which is impossible. What happens in the event horizon? The light particles travel parallel i.e. they move away from the event horizon. Think what will happen if the light particles move towards the black hole. In this case, event horizon contracts. But this does not happen. The light particles travel away from the black hole. Hence, the e...

Hello everyone! Welcome back to AstroMe. In my previous post, we learned about the black hole and their formation. If you haven't checked it, click on this link-   What is black hole and its formation Did you know? There are certain conditions required for black hole formation. In this post, we will dive deep into this topic. C’mon, let’s jump into the black hole and know more! In my previous post, we saw that a black hole is formed when a star dies. That is when a star runs out of fuel. So, what happens after the star dies? When stars die, depending on their mass, they turn into one of the following: ·          Neutron star ·          White dwarf ·          Black hole              Ok! Now let’s see how this happens.             Fig ...

    I am pretty sure you might have heard a lot about black holes. Have you ever wondered what they are? You might have initially thought that black holes are objects in a fantasy story that is narrated to kids. Didn't you? Well, it’s actually a beautiful space phenomenon that I'll be explaining to you in this post. So let's begin!   What is a black hole? Credit: NASA Black holes are regions of space-time. Till now we have seen objects which are three-dimensional but in our space there is no restriction, an event can occur at any point in time and space, so they are interdependent, causing a four-dimensional space called "space-time", which Einstein first discovered in his " Theory of Relativity ".     Black holes are simply points (singularity - an infinity point in space-time) in space. They are so dense and have such a strong gravitational force that no particles or even electromagnetic radiations can escape. The next question will be: ...