Today I Had...

Since the dawn of civilization, men have looked up at the sky and their minds have never stopped to wonder if it will ever be possible for humanity to travel across the Universal space. We have traveled across the unknown seas to bust the myth about the Earth being flat. We have dived down to the deepest ocean trenches to find previously unimagined watery life forms. We have developed supersonic jets to make the already less time-consuming air-travel even faster. We have set foot on the Moon as well. But alas the Lunar landing has till now been our Final Frontier. And although previously thought to be an impossible mission, more and more research in this segment is making the idea of space travel sound possible with each passing day. So let's dig more into this concept which is also known as Interstellar travel. Interstellar spacecraft- reimagined What Is Interstellar Travel? Interstellar space is often called the space between the stars, but more specifically, it’s the region betw

A black hole  is a region of space  within which the force of gravity  is so strong that nothing, not even light , can escape. The existence of such objects was first suggested as far back as the late 1700s. However, it was Karl Schwarzschild (1873-1916), a German astronomer, who basically developed the modern idea for a black hole. Using Einstein’s theory of general relativity, Schwarzschild discovered that matter compressed to a point (now known as a singularity) would be enclosed by a spherical region of space from which nothing could escape. The limit of this region is called the event horizon, a name which signifies that it is impossible to observe any event taking place inside it (since information is unable to get out). A black hole holds some of the major mysteries of the universe For a non-rotating black hole, the radius of the event horizon is known as the Schwarzschild radius and marks the point at which the escape velocity from the black hole equals the speed of light. In t

Recently the passin g of the comet Neowise across the starry skies of the Earth caused a lot a buzz across the globe. It was discovered  by a team using the WISE  space telescope under the NEOWISE program on March 27, 2020.  What was worth mentioning about this is the fact that the comet Neowise, once it disappears from view, it will not be seen across the Earth's skies for another 6800 years. It was visible across the Earth skies all through July 2020 and 22 July being the day it was closest to the Earth, just 64 million miles away. For the space novices, let's start with what these celestial bodies are. The comet Neowise as photographed from the ISS What are comets? A comet is a very small solar system body made mostly of ices mixed with smaller amounts of dust and rock. Most comets are no larger than a few kilometers across. The main body of the comet is called the nucleus, and it can contain water, methane, nitrogen, and other ices. When a comet is heated by the Sun, its ic

Galaxies are defined as large groupings of stars, dust, and gas held together by gravity. They vary greatly in size and shape. Most of the objects we know of in space are contained within galaxies. They contain stars, planets, moons, comets, asteroids, nebulae, dust, neutron stars, and black holes. Many probably even contain large amounts of unseen dark matter. Since most of the space between galaxies is thought to be empty, a galaxy is essentially an oasis in space. Our own solar system is located within a galaxy. Our Sun is only one of over 100 billion stars in a galaxy called the Milky Way . The Milky Way is a gigantic spiral disk with a bright, central bulge. Our solar system is located about 3/4 of the way out from the center in one of the galaxy's spiral arms. All of the stars we see in the night sky are part of the Milky Way. And just like our solar system, our galaxy is in motion. The stars within the Milky Way revolve around the central core. The Milky Way itself is moving

In this vast emptiness of the cosmos, there is our Solar System somewhere in the Milky Way galaxy and there is only one known planet in the Solar System that is teeming with organic life, The Earth. Approximately 4.5 billion years ago the initial formati on of the Earth started along with the formation of the Sun. Stars like the Sun are essentially formed from clouds of gas in space. We know these as nebulas. Over time gravity causes the atoms of gases and space dust to start coming together and gathering. Over time this gather of gases gains more mass and with it stronger gravity. This is a process that can take millions of years. In time the gravity causes the gases, mainly hydrogen to fuse in a nuclear reaction and a star is formed. The formation of the Earth occurred after this initial phase happened for our Sun. After the Sun was formed we know from observations and other indirect evidence that there were leftover gases and heavier elements. The gravity of the Sun helped to flatte

From childhood, we have been intrigued about the sun, moon, stars, our Earth, and the other planets, space, etc. Whether we were well aware of how the space bodies work or we just enjoyed stargazing, space has given us lots of thoughts to wander about so many things. So I thought of again taking a dive into this space ocean and take a look at the neighborhood where our home, the Earth is. Let's take a peek into our solar system. What is the Solar System?  The Solar System To know exactly what we mean when we say the term- Solar System, we should first breakdown the two words which constitute the term and check out their individual meanings. The term 'Solar' means 'of the Sun' and system means- a set of things working together as part of a mechanism. Hence when we combine the words it means that the Solar System is a group of objects(here Planets, Moons, etc) working together under the principle mechanism of the Sun. Our Solar System along with innumerable other sola

We are not new to the term 'Global-Warming'. Climate activists have been repeatedly mentioning this term in order to make us aware of the consequences global warming will have on us and our home, The Earth. Repeated campaigns and awareness drives are carried out in order to bring home the idea that we have only one planet we can call home and although we are not all-powerful we must at least do whatever is in our power to save our only home and thereby save ourselves and all of life.                                                                     The only planet with life: Earth What is Global warming? Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate. There is great debate among many people, and sometimes in the news, on whether global warming is real or a hoax. But climate scientists looking at the data and facts ag