
The vast Expansion of the space that we call the universe contains everything there is. It includes the sun, the planets, the Milky Way galaxy and all the other galaxies too. The universe is the continually growing, and each part is gradually moving further away from every other part or some are even getting closer to other parts.
We know about the universe thanks to technological advancements which made it possible by the invention of the powerful telescopes to study light, radio waves, x- rays, and other radiation that reach earth from space. Light from a star travels nearly 9.5 billion KM (6 billion miles) in a year. The distance is called a light year. The light from a distant star that you can see through a telescope may even have traveled thousands of years to reach us.
The universe contains billions of galaxies from out of the gas that was ejected by a massive explosion that happened in the universe billions of years ago. This idea is called the big bang theory. Galaxies, which contains gas, dust, and thousands of millions of stars, belong to one of three main groups- elliptical, irregular, or spiral. Most galaxies are elliptical, ranging from sphere shapes to irregular. Others, such as the Milky Way, are spirals. Most galaxies belong to a group called clusters, which often contains thousands of galaxies of all there kind.
Before ending my blog, I would just want to emphasize on the endless discoveries of space. This is because the space is like a balloon expanding and growing in many ways. Therefore I would say it would be a great achievement if we would have in depth knowledge of it.
We know about the universe thanks to technological advancements which made it possible by the invention of the powerful telescopes to study light, radio waves, x- rays, and other radiation that reach earth from space. Light from a star travels nearly 9.5 billion KM (6 billion miles) in a year. The distance is called a light year. The light from a distant star that you can see through a telescope may even have traveled thousands of years to reach us.
The universe contains billions of galaxies from out of the gas that was ejected by a massive explosion that happened in the universe billions of years ago. This idea is called the big bang theory. Galaxies, which contains gas, dust, and thousands of millions of stars, belong to one of three main groups- elliptical, irregular, or spiral. Most galaxies are elliptical, ranging from sphere shapes to irregular. Others, such as the Milky Way, are spirals. Most galaxies belong to a group called clusters, which often contains thousands of galaxies of all there kind.
Before ending my blog, I would just want to emphasize on the endless discoveries of space. This is because the space is like a balloon expanding and growing in many ways. Therefore I would say it would be a great achievement if we would have in depth knowledge of it.

