Do you think that anything if at all would give us a big warning or clue if our own galaxy was breaking apart?.[FACT]:It would take two-hundred & fifty million years for us to circle our own galaxy if it would be at all possible !?!.
2007-07-31 14:31:00 · 10 answers · asked by ? 5 in Science & Mathematics ➔ Astronomy & Space
If our galaxy were breaking apart, we'd know it millions of years in advance. The globular clusters, the stars, and the nebulas would display completely different motions than they do today.
As long as the Earth and the sun were not separated, and there were no abnormal gravitational fields, and there were no nebulas, dust clouds, or gas clouds that entered our system, we probably wouldn't notice much in the way of effects (except the night sky would change and we wouldn't see the constellations the same way).
2007-07-31 14:36:39 · answer #1 · answered by Anonymous · 1⤊ 1⤋
we already have a warning that the milkyway is goin to break apart.The milkyway is about to break up in about 2 billion years when it collides with the andramada galaxy. we know this because of something called the dopplar effect and the red shift. this is all physics mumbo jumbo. the dopplar effect is in short something you see every day. it is the change of light/sound waves over distances. i.e. when an ambulance comes, the noise changes pitch as it gets closer, and then again as it retreats. this goes with redshift. if we look at the spectrum of stars, its light breaks up into the colors of the rainbow. now if lines in these colors( made by elements blocking a certain wavelength of light in the stars atmosphers) move toward the color red, the star is retreating, but if the lines move toward the blue color(the opposite side of the spectrum then red) the star is approching. right now the red shift in andramada is moving toward the blue, hence the galaxy is on a collision course with us. but as mentioned above stars rarely collide. lucky or unlucky, depending on how you look at it humans will be long gone though. but the earth and solar system will still be here, but the sun has grown increasingly hotter and has evaporated the oceans and scorched the land. other than that we probrobly wouldnt notice any thing different. except over the 250,000,000 years, give or take, 10,000,000 years it take for the 2 galaxies to collide our solar system/ individual planets might be flung out of the galaxy/solar system. and the other thing that you would notice is that if you could live for a very long time in fast motion and were to look at the andramada galaxy you would notice that it would grow increacingly lager until it would envelope the sky. just like you can see he milky way at night is how andromada would look. but scientist say that since we are in the outer fringes of our galaxy we might be thrown from the galixies all together so we might just get front row seats to watch the 2 giants of the local group duke it out in which there is no victor, just a new massive elliptical/irregular galaxy.
2007-07-31 18:05:56 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The biggest galaxy to the Milky Way is the Andromeda galaxy. The Milky Way and Andromeda galaxies are getting closer all the time. And when they collide, in billions of years, scientists are unsure what would happen since both galaxies are about the same size. This may be the most likely possibility for the earth being broken off from the Milky Way.
2007-07-31 15:14:58 · answer #3 · answered by greencoke 5 · 0⤊ 0⤋
We are on the very edge of the Milky way. On some back water star on one of the arms., it is unlikely that anything catastrophic will happen soon.
The earth is constantly locked into orbit around the Sun. If the Sun where to suddenly get thrown out of the milky way, we would go with it.
One possibility would be another galaxy crashing into ours. In our view we have not observed anything like this.
2007-07-31 17:22:29 · answer #4 · answered by Jason G 2 · 0⤊ 0⤋
Yes I can. Through collisions with other galaxies alot of things happen. Very rarely do stars actually collide but a collision between galaxies would cause huge dustclouds to compress. This would cause an explosion of starformation and many of the stars formed would be supernova candidates. So planets like earth could find themselves very close to exploding supernovae. For earth the impending collision with the Andromeda galaxy might cause serious hazards to earth but it is an event so far into the future earth will probably not be around anyway.
2007-07-31 14:55:12 · answer #5 · answered by DrAnders_pHd 6 · 1⤊ 0⤋
lindajune is correct; nothing very dramatic would happen to us. We'd just go on orbiting the Sun, the Moon would go on orbiting the Earth. It would take hundreds of millions of years for our galaxy to break up. At the end of this, we'd no longer see the Milky Way stretching across the sky and the constellations would be different, but a few hundred million years from now the constellations will be different anyway.
2007-07-31 14:54:34 · answer #6 · answered by zee_prime 6 · 1⤊ 1⤋
we can be gazing from our little area colonies around the shrunken orange megastar which grew to become into our solar. The Earth would have been deserted for better than one billion years and is an ice planet with some archeological digs and a cutting-edge keep for vacationers. Mercury is roofed with the help of domes and sounds like a insect's eye from area, floor temperature on the solar-locked area is bearable, if slightly chilly... the domes help for raising plant life. We nevertheless will no longer be able to shuttle between stars with impunity, nevertheless some robots have been dispatched to the countless closer stars, maximum have back with below exciting information. some have not back in any respect. the fairly larger stages of radiation, led to with the help of Ia supernovae, white dwarf stars amassing the dirt clouds that coalesce because of the gravitational disturbances from the Milky way/ Andromeda merger. The morphing of the Milky way from a spiral to an elliptical galaxy will reason many stars to "fall" out of their orbits into different orbits. This result would be referred to as "The Andromeda rigidity"... no person will think of it particularly is humorous.
2016-11-10 20:55:40 · answer #7 · answered by Anonymous · 0⤊ 0⤋
The galaxy does not just break apart. If another galaxy was intersecting it it could turn into a rough ride gthough. Lookup "The Mice" on NASA's picture archive. I guess the least would be a bombardment of asteroids.
2007-07-31 14:36:28 · answer #8 · answered by Fast Eddie 2 · 2⤊ 0⤋
I think it would make no difference. The galaxy does not have much effect on Earth. It is the Sun that is important, and the Sun would be just fine all by itself outside any galaxy.
2007-07-31 14:55:04 · answer #9 · answered by campbelp2002 7 · 1⤊ 1⤋
well the sun would appear smaller every day and it would get colder and colder until the earth was a giant freezing ball of floating rock, we would all freeze to death
2007-07-31 14:39:09 · answer #10 · answered by Anonymous · 2⤊ 0⤋