Galaxy

As we all know our universe is very vast, every day it unfolds some new secrets in front of us. Like- many new planets, galaxies, asteroids, meteoroid, comets are seen by our great scientists every day. Every new element of universe reveal many secrets such as- proper determination of evolution of earth, about earth's surface, extinct animals, plants, about life on other planets and many more. But all these discoveries totally depend on the instruments which we use to explore the universe. And…

Introduction Delphinus is a constellation that often passes by the watch of astronomers due to its limited size, however this little wonder has fascinating stars that captivate your attention when you take the time to focus upon it. Location South and away from the Milky Way's band lies the constellation Delphinus the Dolphin. This tiny grouping of stars lies in the transition zone from that of the summer star filled skies to that of the sparse autumn skies. Once you have located Delphinus…

exist” argument was not introduced by Fermi, but by astrophysicist Michael Hart. Hart, in a 1975 paper published by the Royal Astronomical Society, argued that if there were intelligent beings in the galaxy, they would have eventually achieved space travel, and would have explored and colonized the galaxy as we have explored and colonized the Earth. The absence of intelligent extraterrestrial life, he concluded, is proof that it does not exist. Hart rejected all alternative explanations,…

One of the most strange and interesting things in my opinion is called a black hole. The most interesting thing about them is that they can completely make something disappear but the item keeps it's original mass. That is why I will be writing about black holes in this paper. People have been studying black holes for a long time. In 1915 Albert Einstein published his theory on black holes. But the same year Karl Schwarzschild proved that theory correct. And people have performed more and more…

The video we watched in lab, “Life and Death of a Star,” gave us incredible information regarding the life cycle of a star. There are billions of stars out there and in our galaxy, we have about four billion. Stars, which are ignited by the power of the atom, burning with light, heat and wrath, stars are anything but peaceful. They collide, devour each other, and explode in enormous supernovas. These “supernovas” are known to be the largest explosion in the universe. Throughout the video, we…

dust in outer space. A primeval is standing for the earliest ages in the history of the world. This means Primeval nebula means a cloud of gas and dust in outer space a long time ago. It was how people think the galaxy was created. This is saying that the universe was always there. The galaxy was created. Then all the stars and planets were created. They were all made from small clouds of dust and gas in space. The nebular hypothesis is the most widely used theory for the formation of the…

There are at least one hundred billion galaxies in the observable universe. The first galaxies formed around 13.5 billion years ago after the big bang and the dark ages. NASA states that, “After the Big Bang, the Universe was composed of radiation and subatomic particles.” There are two theories about what happened next. The first theory is that small particles slowly team up and gradually form stars, star clusters, and eventually galaxies. The second theory states that the universe first…

are letting astronomers see a peek of a few faint galaxies that could have occurred as far back as 600 million years before the Big Bang. These tiny galaxies could have possibly played a large part in cosmic reionization. Rachel Livermore an astronomer at the University of Texas at Austin says “That when they detected galaxies as faint they did it supports the idea that a lot of little galaxies reionized the early universe and that these galaxies may have played a bigger role in reionization…

as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. Due to its proximity to Earth large size and active galactic nucleus] or supermassive black hole), Messier 81 has been studied extensively by professional astronomers. The galaxy's large size and relatively high brightness also make it a popular target for amateur astronomer. Messier 81 was first discovered by Johann Elert Bode in 1774.Consequently, the galaxy is sometimes referred…

Hubble space telescopes have discovered a massive galaxy creating more and more new stars. The way that this massive cluster has been formed so quickly is by feeding off gases from other galaxies. Tracy Webb of McGill University explained that usually a star in the center of a galaxy is old and dead, but this new cluster within this rare galaxy is creating new stars very quickly by merging with other smaller galaxies. Clusters are families of galaxies bound together by the ties of gravity.…