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Galaxies in CollisionOne of Many Reasons Why
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![]() The Mice (NGC 4676), two galaxies suffering the aftermath of near-collision. Picture courtesy Hubble Space Telescope. |
Some Christian Fundamentalists suggest that the universe is only about 6000 years old. Certainly God could create the universe in an instant. He could even make it look old, but why would He deceive us? I don't think He would. I think he would require that we work harder to understand. That requires that we not be lazy and arrogant. Thinking that we know it allincluding the meaning of scriptureblinds us from ever finding new answers; it makes us arrogant. Any unwillingness to dig further for more answers, or to think that the Bible could only be taken literally, is equivalent to laziness. Hard work and humility are required.
The speed and size of galaxies are two facts which point to a very, very old universe. Let me explain.
Galaxies are likened to cities of stars, except that their populations range from ten million to a trillion stars (10,000,0001,000,000,000,000). Each star is a glowing ball of gas powered by nuclear explosions at their cores. How could a mere ball of gas contain millions of nuclear explosions? You have to realize that each of these spheres is huge. The amount of gas pressing down on the stellar cores weighs more than 10,000 Earths. In fact, our own average starthe Suncontains about 332,950 times the mass of Earth. And some stars contain up to a hundred times this mass.
Below are several Hubble pictures of galaxies in the aftermaths of collision. Each picture includes features which have been caused by tidal forces between the pairs of galaxies. To say that the universe is very youngperhaps only 6,000 years oldis to say that these features are the products of interactions which never occurredin other words, a deception! Would God really do that?
(NASA/HUBBLE SPACE TELESCOPE)
The image above was captured on April 7, 2002 by the Hubble Space Telescope's Advanced Camera for Surveys (ACS). These two colliding galaxies, located 300 million light years away in the constellation Coma Berenices, have been nicknamed "The Mice" because of their long tails. These long streams of light consist of billions of stars and gas being pulled from each galaxy by the tidal forces of gravity. Eventually, the two galaxies will merge to become one.
Reference: http://www.orlandosentinel.com/news/space/orl-hubblegallery,0,5003908.photogallery,
retrieved 2010:0406
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Every star in the universe likely has planets or planetoids and thus would be like a "sun" to those worlds. And there are likely several sextillion planets in the known universefor example, 3,000,000,000,000,000,000,000 (3×1021). A small percentage of those countless planets may be found at the right distance, possessing the right mass and chemistry, with an atmosphere, allowing it to harbor liquid water and life. Scientists have already found hundreds of planets, most of which are far too massive and either too close or too far from their sun to support Earth-like life. But a few hundred out of billions in our own moderately large galaxy remain the barest of beginnings. |
![]() Artist concept of the star, Kepler-11, with 3 of its 6 known planets transiting in front of their sun. Kepler-11 is a G6V star and about 613 parsecs (~2000 light years) from Earth. |
The distance between stars is huge. Between our sun and its next-door neighbor, Alpha Centauri, is something like 26 trillion (25,980,000,000,000) miles. If you were able to walk 50 miles in a day, and did this every day for 50 years of your life, you would still need 28 million lifetimes to cover that distance. And that's only to the nearest star to our sun.
That same distance to Alpha Centauri is also measured by the length of time it takes light (radio waves and similar radiation) to travel there. At 186,282 miles per second, it takes light about 4.33 years to make that distance. Light is fast! But still it takes years to cover the gargantuan gulf between stars. Light could travel 7 times around the Earth in one second, if it could be made to curve along the surface. And still, it seems slow when taking an interstellar trip.
We know how bright our sun appears in our daytime sky. Imagine for a moment how far our own sun would have to move away from us in order to shine as a moderately bright star in our night sky. Just as a candle provides sufficient light for reading when up close, at the horizon it remains barely visible if it can be discerned at all.
As large as the distance is between stars, try to image how large a galaxy is that has several hundred billion such stars. That's a lot of empty space.
As fast as light is, it would take about 100,000 years for it to cross from one edge of our galaxy to the other. Many galaxies are far smaller than ours, while many in the universe are somewhat larger. The distance from our Earth to the closest Milk Way-sized galaxy (the Great Andromeda galaxy, M31) is more than 2 million light years. Remember, it's about 4 light years from Earth to the closest neighboring star system, Alpha Centauri, and that distance, if you could walk it, might take 28 million lifetimes. If you could walk to the Andromeda galaxy next door, it would take about 57 trillion lifetimes (57 times a million times a million).
![]() Arp 81NGC 6622 (left) and 6621 (right), 100 million years after collision. Picture courtesy Hubble Space Telescope. |
In 2008, NASA released a collection of images to celebrate the 18th anniversary of the Hubble launch. All 59 of the images were taken by the Hubble Space Telescope. All 59 were of merging galaxies.
Hubble (Associated Press / April 23, 2008)
Arp 81 (above) consists of a pair of interacting galaxies which stand approximately 300 million light years away in the constellation Draco. NGC 6621 (right), is a very perturbed spiral galaxy and remains the larger of the two. A large, spiralling tail extends from NGC 6621. NGC 6622 (left) and its larger companion collided about 100 million years ago! The bright blue patch between the two appears to be a region of extensive star formation triggered by the earlier collision.
Reference: http://www.orlandosentinel.com/news/space/orl-hubblegallery,0,5003908.photogallery,
retrieved 2010:0406
Popping Galaxy!Hubble (Associated Press / April 23, 2008) Located in the constellation of Ursa Major (the Great Bear), both galaxies stand about 500 million light years away. Scientists explain that "The collision between the two parent galaxies produced a shockwave effect that first drew matter into the center and then caused it to propagate outwards in a ring." |
![]() Galaxy pair, Arp 148, suffering an ongoing collision. Picture courtesy Hubble Space Telescope. |
![]() Collision between NGC 6050 and IC 1179. Picture courtesy Hubble Space Telescope. |
Wrestlers in HerculesHubble
(Associated Press / April 23, 2008) Both are part of what is called the Hercules Galaxy Clusterpart of the "Great Wall" of clusters and super-clusters (the largest known structure in the entire universe). Both galaxies are linked together by their spiral arms. |
Resistance is Futile!Hubble
(Associated Press / April 23, 2008) |
![]() Collision of the IC 1623 pair of galaxies. Picture courtesy Hubble Space Telescope. | |
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IC 1623 is located in the constellation Cetus and about 300 million light years away from us. | ||
![]() NGC 2207 and IC 2163. Picture courtesy Hubble Space Telescope. |
Eaten by a Giant
(NASA/HUBBLE SPACE TELESCOPE) | |
| Reference: http://www.orlandosentinel.com/news/space/orl-hubblegallery,0,5003908.photogallery, retrieved 2010:0406 | ||
Romantic PairHubble
(Associated Press / April 23, 2008) The pair of galaxies is also very bright in infrared. In fact, the added luminosity in those wavelengths is equivalent to the brightness of our sun times a hundred billion. This collision is taking place in the constellation Virgo, roughly 450 million light years from us. |
![]() NGC 5331 pair of galaxies colliding. Picture courtesy Hubble Space Telescope. |
![]() NGC 5754 and 5752. Picture courtesy Hubble Space Telescope. |
Big BrotherHubble
(Associated Press / April 23, 2008) |
Second DateHubble
(Associated Press / April 23, 2008) Located approximately 400 million light years from Earth, the pair emits an infrared glow more than a hundred billion times the brightness of our own sun. Both galaxies are thought to be at the leading edge of a starburst phase. |
![]() NGC 6670 pair of galaxies. Picture courtesy Hubble Space Telescope. |
![]() A pair of galaxies, VV 340AB colliding. Picture courtesy Hubble Space Telescope. |
Cross-wise CollisionHubble
(Associated Press / April 23, 2008) Massive amounts of infrared radiation indicate an enormous rate of star formation similar to the most energetic giant star-forming areas of our own galaxy. |
Tadpole(NASA/HUBBLE SPACE TELESCOPE) The Tadpole can be found in the constellation Draco, and roughly 420 million light years from Earth. |
![]() UGC 10214 and a long tail drawn out into inter-galactic space. Picture courtesy Hubble Space Telescope. |
![]() Analysis of NGC 6621 and 6622. Picture courtesy Hubble Space Telescope. |
Above we see a large, broad tail pulled into an arc around the two galaxies, NGC 6621 and 6622. Because matter cannot move faster than the velocity of light, the billions of stars making up this tail were pulled into this configuration over a period of approximately 100 million years!
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The Mice, a pair of galaxies (NGC 4676), remain in the aftermath of a collision which took place millions of years ago. It has taken hundreds of thousands of years for the stars circled in the picture to spill out into the space between the two galaxies. |
![]() Analysis of the Mice (NGC 4676). Picture courtesy Hubble Space Telescope. |
![]() Analysis of NGC 6670. Picture courtesy Hubble Space Telescope. |
The vast stretch of space between two galaxies, even when they are this close is far more gigantic than most people can fathom. The space circled in the picture of NGC 6670 covers a distance of many tens of thousands of light years. Even at the blinding speed of 1000 kilometers per second (fast for any star not in the core of a galaxy), it would take 3.5 million years to cover only 10,000 light years. |
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The immense tail drawn out of the "Tadpole" galaxy extends several hundred thousand light years from the body of the main galaxy, pulled by the compact, bright blue galaxy in the upper left of "tadpole" head. Those billions of stars which make up the tail would have taken millions of years to be drawn into that shape. It remains physically impossible for those stars to have accomplished their current arrangement any faster than this. Of course, God can do anything. He could rearrange all of the galaxies of the universe in the blink of an eye. |
![]() Analysis of UGC 10214 Picture courtesy Hubble Space Telescope. |
And He could just as easily have instructed the writing of the Bible in such a fashion that it would require the humility of the reader in order to understand its secrets.
Do you have that humility?
The Bible was not written to make it easy on you. Understanding comes to those who are willing to let go of their preconceived notions. The biblical interpretations on this website are meant to provoke the required humility. Nothing more. Truth cannot come from mortal interpretation. Only the Lord can give you that, but only if you are ready.
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