Showing posts with label Astronomy. Show all posts
Showing posts with label Astronomy. Show all posts

Other Life in Space

Other Life in Space: We have special feelings for other planets that surround our sun. Maybe it's all science fiction stories about visiting the moon, Mars, and other planets. But we like to think of planets that make up what we call the "solar system." Who does what our planet does but does it very differently.
Other Life in Space
Other Life in Space
The planets of our solar system have a personality and mystical appeal in our literature and art. It's easy to find artists who make their vision of the planets that make up our planetary society near our sun. The names of planets, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune are all from our cultural past becoming gods of Greek and Roman mythology. But the solar system does not only consist of these planets. The solar system is indeed a very busy place.

In 2006, there was little controversy when scholars and astronomers agreed to reduce Pluto's ranking and remove its status as a planet. So you have to wonder, what makes something a planet and what happens to Pluto? It doesn't just go away so it must remain out there. A planet, according to the scientific definition, is any object that orbits around the sun, which has formed a kind of round object that is a planet as long as it has cleaned objects that orbit around it. By cleaning, that does not mean he has destroyed all the debris etc. For example, our planet does not "cleanse" the moon but has captured it into its own orbit so we classify it as a planet. Is that a relief?
Other Life in Space

There are many objects that hover in our solar system besides the planets we know. An interesting piece is that in addition to those planets there are 165 moons orbiting around nine planets. Some of these months were so advanced that some scientists suspected that they might have supported life at some point.

Apart from regular planets and moons, there are dwarf planets, asteroids, and regular comet visits that generate a lot of traffic at the cosmic angle of our universe. The two known dwarf planets that exist on the outer edges of our solar system are Eries and Ceres. So when the status of Pluto is changed to be removed from the list of planets, it only joins the two objects as dwarf planets but is still a solid citizen of the community of celestial bodies around our sun.

Apart from these larger objects, there is an asteroid belt between Mars and Jupiter where most of the asteroids we see in the night sky originate. There are other belts of larger, far-away objects called Kuiper belts and "bubbles" in space called heliopause and there is an alleged extra belt outside the known solar system called the Oort belt which we think is a great origin. large asteroids and comets that are often our solar system and come to orbit our sun.

Just as interesting as many celestial bodies that are our neighbors in space is the origin of our solar system. We must break it down into simple terms to understand these terms but we know that the early history of the solar system and the universe is one of a collection of gases and clouds of matter which eventually cools and heats, detonates and rotates giant stars and others giant space which is becoming more stars, galaxies, and solar system. It is from this erratic activity that our sun is separated from the gas and carries with it the material that becomes our solar system. Sun's gravity captures sufficient material which begins through the process of forming, cooling, exploding and separating. This is what happens when all planets go through the same process, eventually forming stable orbits and small objects that fall into orbit around them.

When you think about how strong and uncontrolled this process is, it's amazing to step back and see the beauty of our solar system organization today. The more detail you learn about the history of our solar system, the more you will enjoy exploring the planets with a telescope. The discovery is part of astronomical pleasure.
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Understanding of Shooting Stars

Understanding of Shooting Stars: If you are an astronomical fanatic that is as serious as most of us, you might be able to remember that one event in childhood began you along this exciting hobby. Maybe it's the first time you have looked through a telescope. But for many of us, it is the first time we see a rain of fire from the sky that we finally know as meteoroid rain.
Understanding of Shooting Stars
Understanding of Shooting Stars
When you look at the first, it's easy to remember the film "world war" or other extraordinary alien images entering our atmosphere in droves to take over the planet. But with some clues and an explanation of what was happening, we finally learned that this rain was not threatening at all or any invasion. Most meteoroid rains are harmless, part of nature, and very fun to watch.

So what are the strange lights in the sky? Are they aliens attacking from Mars? Did the comet come to start the next ice age? Or maybe an asteroid that burns when it enters the Earth's atmosphere. The answers to the above questions are not for the first and "yes and no" for the other two.

A meteoroid is actually a small piece of space debris, usually a small dust or stone that originates from a comet or a breakdown of asteroids in space and which eventually drops to earth. We say "towards the earth" because the light you see is the friction of the atmosphere that burns the tidbits of that small space and creates a spectacular show for all of us when they do it. A very interesting time to watch is when a meteoroid breaks or explodes when entering. Exploding meteoroids are called bolides.

There are some interesting details about the life of a meteoroid that makes the appearance of shooting stars more enjoyable. To be seen, a meteoroid only needs to weigh as little as one millionth of a gram. But the thing that makes them so spectacular to look at is the incredible speed they reach when they enter the atmosphere. Before it burns, the meteoroid will reach between 11 and 74 kilometers per second which is 100 times faster than a fast-moving bullet.
Understanding of Shooting Stars

We tend to think that seeing a shooting star is a strange event and we associate it with superstition (hence, hoping for a lucky star). But there are actually thousands of them every year so it's very rare to see it. In fact, scientists tell us that more than 200,000 tons of space material enters the atmosphere every year and burns when entering.

Comets are a large source of meteoroids because of the nature of their long tail. Large amounts of dust, ice, and other space debris are trapped in the comet's tail as it moves toward the sun. Then when the comet moves away from the sun in its orbit, tons of these things are thrown into space to spread. When the Earth moves in its regular orbit around the sun, it often crosses the clouds of waste material which is one of the "meteor showers" that are so popular to see.

This falling star rain is easy enough for astronomers to predict so you can get into a position to see the excitement at the right time at night and see the area right in the night sky. Usually a magazine or astronomy site will give you a general time and location to be ready to see when the meteoroid starts falling.

Now keep in mind, this is a natural phenomenon, so it might not pay attention to the time table correctly. Also note that there is a system of notation for meteoroid showers that will occur based on the background constellation. The sky part to focus on the show is called "glow" because that's where the incoming meteoroid starts to glow or radiate. Radiant is named for the closest constellation. So if a meteor shower will occur in the constellation Leo, then the beam will be called Leonid. This will help you outline the asteroid rain list in publications.
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Comet : Outer Space Falling to Earth

Comet : Outer Space Falling to Earth: The one thing we love most in the world of astronomy is a good mystery. And if there is a mysterious but very powerful natural force that we see in the night sky, it is the arrival of Outer Space Falling to Earth which is commonly called a comet.

The arrival of comets in view of the Earth is an important international event. Watch the great media attention that Haley or Hale-Bopp has when they appear. Seeing these extraordinary objects simultaneously is scary and amazing.
Comet : Outer Space Falling to Earth
Comet : Outer Space Falling to Earth
Most importantly, during this comet observation the astronomer appears in all of us. But what is a comet? Where does it come from? And how do you get that amazing tail?

We should never confuse comets with asteroids. Asteroids are small space rocks originating from the asteroid belt between Mars and Jupiter. Even though it's still quite amazing to look at, they are pale compared to the arrival of comets. Asteroids have also received a lot of research by the scientific community.

Not much is known about comets. As a rule, comets are much larger than asteroids. The composition of comets is a mixture of debris, gas, ice, dust and space. One scientist calls the composition of comets the same as "dirty snowballs" because their composition is very diverse and can change. The center or core of a comet is usually dense, but "snowball" material often creates "clouds" around the nucleus that can become very large and extend behind the comet as it moves through space. It was the trailing feathers that formed the extraordinary comet tail that made it very interesting to watch when a comet appeared in the view of the Earth.

The origin of the comet is equally mysterious. There are a number of theories about where they came from but it is clear that they are from outside our solar system, somewhere in space. Some speculate that they are the remaining fragments of planetary organizations that are free from any gravitational pull and sent flying through space to finally be trapped in the gravity of our sun that brings it to our solar system.

Another theory is that they come from clouds of gas called Oort clouds that cool there after the organization of the sun. When this space debris cools, it is organized into one body which then collects enough mass to be drawn into the gravity of our solar system to turn into a fast moving comet falling into our sun. However, due to the strong gravitational orbit of many planets in our solar system, comets do not always directly collide with the sun and often take their own orbits.
Comet : Outer Space Falling to Earth

The life expectancy of comets varies greatly. Scientists call comets that are expected to burn or impact the sun in two hundred years as short-term comets while long-period comets have a life expectancy of more than two hundred years. For us it may seem long as the inhabitants of the earth, but in terms of stars and planets, this is a very short life as a space object.

Scientists around the world have collected quite a few impressive investigations to learn more about comets to help our understanding of visitors from outside. In 1985, for example, the United States conducted an investigation into the path of the Giacobini-Zinner comet that passed through a comet's tail which collected extraordinary scientific knowledge about comets. Then in 1986, a collection of international scientists could launch a vehicle capable of flying close to Haley's comet as it passed near Earth and continue research.

While science fiction writers and tabloid newspapers like to remind us of the possibility of comets that have an impact on the earth, scientists who understand the orbits of comets and what changes occur on their paths tell us that this is not possible. That's good because some comets reach a size the size of a planet so the impact will be devastating. For now, we can enjoy the pleasure of seeing comets making rare visits to the night sky and admiring the spectacular performances carried out by outside visitors when they are seen in the cosmos.
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The Amazing Hubble

In the history of modern astronomy, there may not have been a single leap forward that was greater than the construction and launch of the space telescope known as Hubble. While NASA has experienced many ups and downs, the ongoing launch and operation of the Hubble Space Telescope may rank next to the moon landing and the development of the Space Shuttle as one of the greatest achievements of space exploration in the last hundred years.
The Amazing Hubble
The Amazing Hubble
A remarkable piece of astronomy that only a few people know is that in fact, only about ten percent of the universe is seen using conventional observation methods. For that reason, Hubble really is a big leap forward. That's because of the very simple reason that Hubble can operate outside the Earth's atmosphere. Trying to do space exploration significantly through a telescope from the surface of the earth on planet Earth is very difficult. That is what keeps us alive, our own Earth's atmosphere presents a serious disruption to being able to see deeper and further into space.

The Hubble Space Telescope is named after the great scientist and visionary Edward Hubble who discovered that the universe was expanding which was explained by what is now known in science as Hubble's Law. To truly feel the extraordinary achievements achieved with the launch of the Hubble telescope, spend time on the NASA website dedicated to the project at http://hubble.nasa.gov. There are also a number of sites where you can enjoy some amazing images from Hubble including http://heritage.stsci.edu/ and http://www.stsci.edu/ftp/science/hdf/hdf.html.

It's hard to believe how long Hubble has orbited the earth and sent back amazing videos and images of what it found in space. But Hubble was originally launched on April 25, 1990. It was the culmination of decades of research and construction that began in 1977. The expectation was high when a telescope orbiting was placed and actually began to function because it was designed to do.

Everything is not always perfect with telescopes and the initial pictures are disappointing. After some research, NASA found that the reason for the initial failure was the curvature of one of the main lenses of an orbiting telescope.

We might never be able to keep this complicated equipment operating and we don't have a Shuttle program to give us tools to implement Hubble improvements and improvements. In 1993 a new lens was installed at Hubble that corrected the problem of image resolution recorded at the beginning of the operation of the telescope.

Two other improvement and enhancement missions have been made for Hubble since its launch, both in 1997 to upgrade older equipment and to improve the telescope to extend its useful life until 2010. It is amazing to think that this scientific and mechanical miracle has operated now for ten years without maintenance. We can be sure that plans are underway for NASA to upgrade or replace parts at Hubble to extend its useful life even further because the 2010 time frame is getting closer.

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It's hard to imagine astronomy or the natural search for greater knowledge of our universe without Hubble. While many times those who don't want to fund space exploration have tried to cut funding for Hubble, the operation of this telescope is too important for astronomers and for the scientific well-being of humans and our planet not to continue using Hubble, or the next natural successor. We will always need to have a set of eyes in the sky to witness the universe and discover more of its mystery.
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Radio Astronomy

Radio Astronomy: For most of us, the idea of ​​astronomy is something that we directly associate with "star observation", a telescope and see amazing displays in heaven. And of course, it's an exciting field of astronomy that makes it very popular. So for those who don't know, the idea of ​​"Radio Astronomy" seems strange. There are two reasons for that. First is that humans are far more visual than audio oriented. And the second is that radio astronomy does not really involve "listening" to the cosmos except to the extent that scientists who use this sophisticated form of "star observation" do not depend on visual studies to do their work.
Radio Astronomy
Radio Astronomy
To appreciate what is really interesting about Radio Astronomy, we must first change the way we view astronomy. That's because for professional astronomers, studying the universe is more about frequency than about visual documentation of phenomena. This brings us back to Physics 101.

Light, obviously, is a physical phenomenon that empowers our ability to use our visual confirmation system, eg our eyes value something, in this case the stars. So when we look up at the sky, we can see light emanating from a star or bouncing off a planet or moon. In many cases, if we see distant stars, we actually see them hundreds or thousands of years ago because that is how long it takes light to cross the universe and be seen in our sky. That alone is a very good idea.

Now the light itself is a pretty strange substance. But for our astronomical scientists, light is just another energy in a certain frequency. Now, we tend to think of frequencies when we talk about sound waves. In scientific terms light, energy and sound are only a few forms of the same thing, the frequency of energy emulated from a source.

Now we come to why radio astronomy is very necessary. The frequency range inhabited by light in the large frequency spectrum is very small. In short, we can only "see" a small part of the universe that is actually there. Now when you look at the night sky and it's so amazing, when you see that we only see a little of what's really happening there, once again, our minds can become very overwhelmed.

Radio astronomy uses sophisticated sensor equipment to study ALL the frequencies of energy that come to us from the cosmos. In that way, these scientists can "see" everything that is happening out there and so get a precise picture of how stars look, behave now and will behave in the future.

For some of us who have heard of Radio Astronomy, we think in terms of "listening" to the signs of life in the universe. And yes, SETI, or "Search for Extra Terrestrial Intelligence" is part of radio astronomy, although a small portion. But far more important is how radio astronomy has empowered serious astronomers (ie those who are paid to do it) to study stars within a few light years, to study black holes that we can never see with our telescopes and to collect research and data about the entire universe which is otherwise impossible to know and understand.


This is an important work that continues in the world of astronomy. It is worth to follow and learn more because we have just scratched the surface in our brief discussion today. But understanding the importance of radio astronomy will only deepen and make your love and understanding more meaningful to this vast field of knowledge known as astronomy.
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The History of Astronomy

The History of Astronomy. If you have the desire to stare at stars, telescopes, Hubble, and the universe and this we call "astronomy", you are far from alone. Of course, we know that astronomy is a highly respected science that has produced some of the most amazing achievements of the twentieth century. What's more, this is a very interesting area and is one of the most interesting hobby areas with thousands of astronomical clubs and tens of thousands of amateur astronomers watching stars every night like we do.
The History of Astronomy
The History of Astronomy
But did you know that astronomy is one of the oldest and most respected sciences of all? As long as before the time of Christ, wise people and people thought at that time saw stars and found ways to track and map them. Those of us who love astronomy can map the proud history of astronomers who cross thousands of years and through almost every culture in civilization. So in order to have excellent trivia to throw at an astronomy club next week, let's highlight some of the great moments in the history of astronomy.

For centuries astronomy was no different from astrological practice. For clarity, astronomy is the study of stars, planets and universes with a clearly scientific approach. Astrology is the study of zodiac signs and how they affect our growth, our personality and our daily lives. In modern times, we as scientific people ignore the astrological side and focus on heaven astronomy. But they are a study for thousands of years before the age of science separated them.

There is historical evidence that astronomy is a science recognized as far as Babylonian civilization hundreds of years before Christ. But the study of stars is not limited to just one country. There were similar movements that took place in China, India, and Ancient Egypt and throughout the Arabian Peninsula. The integration of astronomy and religion is so prevalent that we see it in the story of Christmas where the Magi, the Zoroastrian priesthood might be from the equivalent of ancient Syria, following the star to the child of Christ. These astronomers are also astrologers and mixtures that make them a part of this historic event.

The first book on astronomy was written by Ptolemy during the Greek empire. Since that historic publication, who lists the great astronomers mapped the way through modern science centers including Copernicus, Galileo, Kepler, Sir Issac Newton, Jung, Michelangelo, Benjamin Franklin and more recently Einstein and Stephen Hawkings will join the noble list. It seems that from the resurrection to the present day, almost every intellect man or woman tries astronomy at least a little and is always considered a sign of people learning to know about the universe and astronomical things.

Astronomy has had an impact on so many areas of our life that we really don't know. Many words in our language are rooted in astronomy like ...

  • Influenza comes from the Latin root for influence. This reflects the initial belief that the position of the moon and stars can affect health and cause or cure disease.
  • Disasters that come from Latin for "bad star".
  • Lunatic which has the basic word "Luna" in it which is the Latin word for the moon. This underscores a long-held belief that is even prevalent today that irrational behavior and even wild and dangerous things occur during the full moon.

Astronomy and its association with astrology have also influenced culture, education and religion for centuries. In English, our first two days or weeks, Sunday and Monday are references to astronomy because the literal interpretations are "Sun Day" and "Moon Day."

So, if you find astronomy to be an overwhelming desire in your mind and what fascinates you about the world we live in, you are in a great company because this field of study has been a major part of culture and has been thought of virtually since the beginning of civilization . And that will continue to captivate humanity as long as the beautiful stars shine above our heads.
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