The Interstellar Travel

We have all know how black holes absorb everything in it. Even light is not sparred. But apart from this they have one more property- they could delete the universe itself. How? Let’s understand how. INFORMATION: Let’s first understand about the “information” I am talking about. It is not about some Roman history or other facts of encyclopedia. It’s the information about the matter in the universe. Everything in the universe is made of matter; how different atoms come together to form different structures to form different things. This is information. The different things may include various things ranging from one carbon compound (diamond or graphite) to squirrels to planets and stars in the universe. The structure of each of these things is called INFORMATION. The basic building block of everything in the universe is the same. Without this information everything would be the same. But black holes eat up this information when they consume the stars and planets. And...

Universe has always been a topic of huge interest. And why shouldn’t it be. It has brightest stars and spinning galaxies. Bright supernovas, dusty nebula, mysterious black holes and the list goes on. There are some things which are not even discovered yet. One’s lifetime is not enough to study and understand them. Many scientists have dedicated their lives for it. They make theories on how life would be in far part of the universe. Or even in the neighboring galaxy. Or could life even exist in other galaxies. Human technology is not that advanced YET to figure these things out. So unfortunately, such theories just remain theories. This makes us wonder; wouldn’t it be cool to just travel all the way from our galaxy to the nearby galaxy and see for ourselves? Travelling from one galaxy to another like the Guardians of the Galaxy and visiting different planets, meeting different beings, knowing their way of life! Who knows, we might bump into Thanos and punch him in fac...

Black holes have always been an interesting subject of conversation among the space enthusiastic. And if you have been following this blog from the very beginning, you will know that I’ve already written four blogs just about black holes and researches related to black holes. So this is yet another blog about black holes because-there aren’t just enough! So this blog is about how the latest research on black hole proved Einstein’s general theory of relativity! For the first time, astronomers have confirmed Einstein’s century old theory by observing action near black hole.   Using the European Southern Observatory’s Very Large Telescope (VLT) in Chile, an international team of professional sky-gazers watched as a star swung by the super massive black hole at the center of the Milky Way Galaxy, and observed the effect the black hole’s extreme gravitational field had on the star’s motion.   By accurately tracing the position and speed of this single star, known as S2...

The very idea of black hole is baffling and scary at the same time. Many scientists have dedicated their lives for studying these scary things. Why scary? C’mon let’s be honest.   Getting sucked by a black hole due to its strong gravitational field means instant death. Although we still don’t know what exactly will happen if a human being falls in the black hole , we have drawn our conclusions based on what it does to light. That’s why; it may sound even scarier when we learned that scientists have discovered a dozen of black holes teaming up at the center of our galaxy-Milky way.   Data from NASA’s orbiting Chandra X-ray observatory has allowed researchers to detect a group of black holes surrounding Sagittarius A*. Sagittarius A* is a super massive black hole at the center of Milky Way-that’s where we are. For a while now, scientists have believed that there is something at this place and now it’s confirmed! Based on the findings,   up to 10,000 black h...

STEPHEN HAWKING - the brightest and the loudest mind in the cosmos! The name itself gives inspiration and motivation to many. Unfortunately he is not with us anymore. At the age of 76, he passed away on 14 th March 2018. But he will not be forgotten. Below are just few reasons why. Stephen Hawking was born on 8 th January 1942, in Oxford. His father was a research biologist. They moved to London to escape from the German bombing at that time. Hawking grew up in London and eventually developed a huge interest in physics. He graduated from Oxford with a first-class degree in physics and then went to Cambridge for post-graduation in Cosmology. It was in Cambridge when he was diagnosed with rare motor neuron disease.   In 1964, his doctors gave him no more than 2-3 years. But the disease progressed slowly than expected. By 1988, Hawking was able to speak only through his voice synthesizer following a tracheotomy; he completed the famous book of all times- THE BRIEF HIS...

Wormhole is hypothesized or theoretical tunnel between two points in the universe. It is supposed to act as a shortcut between the two points. The idea of wormhole was put forth by Albert Einstein and Nathan Rosen in the year 1935. They used the theory of general relativity to propose these tunnels. According to these physicists, wormholes act as bridges through space-time. Wormholes are considered as consistent connections with general theory of relativity, yet there existence remains hypothetical.   The wormhole can connect two long distances points (like a billion light years away) or can connect two short distances (few meters apart). CREATION OF WORMHOLE: Like mentioned earlier, the existence of wormhole is still hypothetical. But if there is even a slightest possibility of its existence, then we would like to know how it was created. Many science fiction movies like Interstellar have shown the existence of wormholes, which opens a pathway to distant galaxies. S...

In early 2016, a group of scientists at LIGO observatory made an incredible announcement-detection of gravitational waves.   Gravitational waves are ripples in curvature of space-time. Till then, gravitational waves were considered as a theoretical concept.   This discovery is not momentous just because gravitational waves were discovered but also because nobody had ever seen two supermassive black holes orbiting so close to each other. This system is called Binary Black Hole (BBH). BINARY BLACK HOLE:- Binary black hole is a system which consists of two super massive black holes orbiting close to each other. Like ordinary black holes, BBH is also divided into stellar (black holes formed by gravitationalcollapse of a massive star) black holes. For many years, proving the existence of binary black hole was difficult because of nature of black holes itself and limited detection methods. When two black holes orbit close to each other, they give out immense amoun...

Black holes have always been a mystery to many. Many scientists have dedicated their lives for the study of black holes. Although till date, we still don’t have an actual picture of a Black hole; scientists are trying to get a closer look at it. And with advancements in the field of technology, soon we’ll be able to see an actual picture of a black hole. How is it possible? Let’s see. Event Horizon Telescope is a project which has been started to study the event horizon of the black hole -Sagittarius A* which is situated in our galaxy. It will capture the pictures of the event horizon and send it back to Earth.   Before going into detail of this project, first let’s see what an Event Horizon is. Event Horizon: Event horizon is a boundary in space-time, beyond which the events cannot affect the outside observer. Simply put, it is the boundary of no returns. It is the boundary of the black hole, beyond which events are not affected by the space time and once in this...

“Black holes are where God divided by zero” – Albert Einstein.  Black holes are giant black bodies in the outer space, which have baffled the minds of many! Many believe their existence as an enormous body that pulls everything in and destroys it and many other believe their existence as a place where time stops and freezes everything. But apart from these beliefs, there are real questions like: how black hole is formed? How it was discovered and what are the theories that explain the nature of the black hole. Black holes are formed when a star collapses upon itself. In short, a star causes a supernova and explodes to form a black hole. Simple enough, isn’t it? Now let’s get into the discovery of black hole and many theories surrounding it. BEGINNING OF BLACK HOLE THEORY:   The idea of Black hole was first put forth in the 18 th century by John Michell. He put forth this idea in a letter published in 1783-84. The calculations in the letter assumed that ...

We have heard and seen many existence of other dimensions, in the science fictional stories and movies. But is it actually possible to have more dimensions apart from the already existing four dimensions? Many physicists believe this idea and call it “parallel universe”. Parallel universe is defined as hypothetical universes which exist just like the one in which we are currently living. It consists of everything- energy, time, space, matter- just like our present universe.   Collection of multiple parallel universes is called as “multiple universes” or “multiverse”. Concepts of multiverse are also evident in ancient Hindu cosmology. According to Hindu mythology, every universe has its own set of rules and is governed by its own god. Scientifically, it’s true. Every universe has its own sets of fundamental rules and is governed by it. How did the idea of parallel universe came into existence? Mostly from science fiction but there is a scientific theory beh...