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    Thursday, January 26, 2017

    Have You Ever Heard Of These Cool Awesome Facts About Milky Way Galaxy?

    Have You Ever Heard Of These Cool Awesome Facts About Milky Way Galaxy?(Interestingawesome.blogspot.com)

    (Note:- There can't be any photograph that contains entire Milky Way galaxy. But their can be photographs which contains parts of Milky Way)

    A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust. Amazingly there are probably more than 170 billion galaxies in the observable universe. Then what is so special about Milky Way galaxy? Because it is the home to our planet and Sun. Milky way galaxy is awesome amazing place for those who wonder about space, and universe. I bet there are many things about our galaxy that you didn’t know: How many possible intelligent alien civilizations could be out there? What is the smell of the center of our Milky Way? Is it going to collide with Andromida galaxy? Yes, there are some very curious and mindblowing facts about our galaxy that not a lot of people know. So lets get into the  Amazing Facts About Our Milky Way Galaxy.

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    1. In Greek mythology, the Milky Way was created when Hera spilled her milk while suckling Heracles. It was also described as the road to Mount Olympus, or the path of ruin made by the Helios (the sun gods) chariot.
    2. Actual proof of the Milky Way consisting of many stars came in 1610 when the Italian astronomer Galileo Galilei used a telescope to study the Milky Way and discovered that it is composed of a huge number of faint stars.
    3. The Milky Way is a barred spiral galaxy that has curved arms that spin out from its center. Astronomers discovered it was barred (meaning the center is bar-shaped) rather than an ordinary spiral galaxy (meaning the center is a spherical bulge) in the 1990s. It is 100,000120,000 light-years in diameter. Which is small compared to M87, an elliptical galaxy 980,000 light-years in diameter. Bigger still is the galaxy Hercules A, which is 1.5 million light-years across.
    4. It would take a phenomenal amount of energy for a star or other object to leave the galaxy. Stars must reach speeds 1 million mph faster than the 600,000 mph at which objects already speed around the Milky Way. Astronomers have discovered 18 such giant blue stars being ejected out of our galaxy. Scientists are unsure how the stars are being propelled.
    5. The oldest star in the Milky Way is at least 13.6 billion years old and most likely formed shortly after the Big Bang.
    6. If our solar system were the size of a U.S. quarter, the sun would be a microscopic piece of dust and the Milky Way would be about the size of the United States.
    7. The Milky Way rotates at a speed of 168 miles per second. So, the actual place in space where you were an hour ago is now roughly 600,000 miles away.
    8. Many galaxies are thought to have black holes at their active centers. The Milky Way's central black hole, known as Sagittarius A* , has a mass four million times greater than the Sun .
    9. Two of the closest galaxies to the Milky Way  the Small Magellanic Cloud and the Large Magellanic Cloud may not have black holes. Or, because both are low-mass galaxies, their central black holes may be too small to detect.
    10. Our Milky Way Galaxy is part of a 'Local Group' of galaxies in which the galaxies move relative to each other. The Andromeda Galaxy is the largest galaxy of the Local Group, followed by the Milky Way and the Triangulum Galaxy, there are around 30 other smaller galaxies in the group.
    11. A study of 27 Milky Way neighbors found that in all dwarf galaxies, the central mass is approximately 10 million solar masses , regardless of whether the galaxy has thousands or millions of stars. This has led to the suggestion that galaxies are largely formed by dark matter , and that the minimum size may indicate a form of warm dark matter incapable of gravitational coalescence on a smaller scale.
    12. The Andromeda Galaxy is not the closest galaxy to ours, and in fact there is one 100 times closer called Canis Major Dwarf Galaxy that is 42,000 light years far from the galactic center and it is a satellite dwarf of the Milky Way.
    13. Our Solar System is located within the disk of the Milky Way Galaxy, around 27,000 light-years from the Galactic Center of the galaxy.
    14. The Milky Way has a halo of dark matter that makes up over 90% of its mass. What this means is that all we can see, even with telescopes, is less than 10% of the mass of our galaxy.
    15. It would take a spaceship thousands of years traveling at the speed of light to get far enough to capture a picture of the entire galaxy. Every picture of the Milky Way that we have is either a picture of another galaxy or an artists interpretation. So till today, there are no photographs that contain entire Milky Way galaxy.
    16. Right now, the Milky Way and another spiral galaxy called Andromeda are moving toward each other. They are approaching each other at about 75 miles (120 kilometers) per second.
    17. However, the sun and Earth may not be greatly affected because the distance between stars in the galaxies is so large. But then earth will be a dead planet too hot to be inhabited. When the collision is over, the Milky Way and Andromeda will no longer be two spiral galaxies, but one elliptical galaxy. Then what is the best name for that newly formed galaxy? Androway? Or Milkmida? Hit the comments.:-D:-D
    18. Supernovae explode on an average once every 100 years in a galaxy. Assuming there are 170 billion galaxies in the universe, there are 53 supernovae exploding every single second.The last time a star went supernova in our milky way galaxy was documented in 1604 and we are overdue for another one.
    19. Even though we dont feel it , Our entire local group of galaxies is moving at about one million miles per hour toward another galaxy group called the Virgo Cluster. The Milky Way can be seen to be just a small part of a large grouping of galaxies 150 million light years in diameter called the Virgo Super cluster.
    20. Amazing fact is were actually travelling at about 828,000 kilometres (515,000 miles) per hour relative to the centre of the Milky Way. That speed would take you around the Earth in just over three minutes. Each time the Sun makes it all the way around the Milky Way, its known as the galactic year, or cosmic year. Its estimated that there have been only 18 cosmic years in the history of the Solar system. It has made 1/1250 of a revolution since the origin of humans.
    21. South African and Swedish scientists discovered that dung beetles navigate using the Milky Way for orientation. They are the first animals proven to use our galaxy for navigation.
    22. Our solar system may smell like hot metal and seared steak, but what about the middle of the Milky Way? According to recent research from the Max Plank Institute , it smells like raspberries and tastes like rum.
    23. Pulsars are magnetized neutron stars that spin incredibly fast and blast out a beam of radiation, kind of like a lighthouse beacon. The fastest known pulsar is PSR J1748-2446ad , located around 18,000 light-years away in the constellation Sagittarius. Though it is of average size for a neutron star, it spins an astonishing 716 times per second. This is nearly a quarter of the speed of light, and exceeds what theories say is possible.
    24. Sagittarius B is a vast molecular cloud of gas and dust floating near the center of the Milky Way, 26,000 light-years from Earth, 463,000,000,000 kilometres in diameter and, amazingly, it contains 10-billion-billion-billion litres of alcohol. And it is 1,000 times larger than our solar system.
    25. Astronomers have discovered the largest known diamond in our galaxy , its a massive lump of crystallised diamond called BPM 37093. Found 50 light-years away in the constellation of Centaurus, Lucy is about 25,000 miles across, so much larger then planet Earth, and weighs in at a massive 10 billion-trillion-trillion carats.
    26. The Andromeda galaxy is our closest galactic neighbor, roughly 2.5 million light-years away. Though it is 140,000 light-years across, it isnt bright enough to be seen in the night sky by our eyes. If it were brighter, it would appear six times larger than the full moon.
    27. Astronomers have found a massive water vapor cloud which holds 140 trillion times the mass of water in the Earths oceans somewhere around 10 billion light years away making it the largest discovery of water ever found.
    28. Earths closest star in the Milky Way, Proxima Centauri, is more than four light-years away (a light-year is about 5.9 trillion miles, about 10 trillion kilometers). Proxima is Latin for close.
    29. Scientists believe that the Milky Way is consuming a small galaxy called the Sagittarius Dwarf Galaxy.
    30. Astronomers must study the Milky Way with telescopes that detect radio waves, infrared light, and X-rays . Optical telescopes, which detect only visible light, cannot pass through the thick clouds of gas and dust.
    31. In 2002 the star V838 Monocerotis erupted and emitted radiation a million times greater than what our Sun puts out. It is still unexplained; however, its believed that the cause of this was due to either two stars colliding or one star devouring its planets.
    32. The Drake Equation is used to estimate how many possible intelligent societies could reside in our Milky Way. Using this equation it is believed that up to 15,785 alien societies could be existing in our galaxy.
    33. Another amazing fact is that you can only see 0.000003% percent of Milky Way with our naked eyes.
    34. Our Milky Way galaxy rotates in clockwise direction.
    35. Astronomers estimate that seven new stars form in the Milky Way each year. They form inside huge clouds of dust and gas.
    36. Astronomers believe that the universe began in an explosion called the Big Bang. The Milky Way formed soon after the Big Bang from a cloud of gas and dark matter that pulled in surrounding material through gravity.
    37. If Earth orbited the sun at the same speed that stars orbit the center of the Milky Way, our planet would travel around the sun in only 3 days instead of 365.
    38. Scientists believe that the Milky Way is one of the older galaxies in the universe. It was formed about 13.6 billion years ago and is almost as old as the universe itself, which formed about 13.7 billion years ago.
    39. The oldest stars in the Milky Way are nearly as old (13.6-13.7 billion years)as the Universe itself and thus likely formed shortly after the Dark Ages of the Big Bang.
    40. The Milky Way has a relatively low surface brightness . Its visibility can be greatly reduced by background light such as light pollution or stray light from the Moon . The sky needs to be darker than about 20.2 magnitude per square arcsecond in order for the Milky Way to be seen.
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    Glad to see you here. Keep checking interestingawesome.blogspot.com for more awesome, interesting and cool stuffs. And please, don't forget to share this in your network. Thanks....!

    Sources:-wikipedia.org, facts.randomhistory.com, space.com,discovermagazine.com, interestingfactsaboutspace.blogspot.com,  amazingfacts4you.com

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