I chose an article from the SkyNews magazine from Nov- Dec 2001 describing the Andromeda Galaxy's movement towards us (blue shift), as appose to most other galaxies and objects in the universe, who are moving away from us (red shift), all as a result of the expanding nature of our universe, and in this unique case- some gravity as well.

The article gives a possible explanation to the unique and different movement of the Andromeda Galaxy- that our own Milky Way Galaxy and The Andromeda Galaxy are bound together gravitationally as a pair of galaxies, which orbit around each other. It is thought that both were formed close to one another shortly after the Big Bang, and moved apart with the preceding intense expansion the new universe was experiencing. Over the years, though, (billions of them, it should be added) the gravitational attraction between them got powerful enough to overcome the force of expansion, and they are now falling towards one another. Possible consequences for this unique attraction, are also touched upon in the article, as a collision between the galaxies or a mere "dance" of movement, passing each other, with merging as it's ultimate outcome.

The Andromeda galaxy proved to be more then just an example of blue shifted object. It helped explain one of the most fascinating phenomena in our life time- the concept of the big bang and the expanding universe.

Knowing to interpret blue shift and redshift movement of any objects' light throws us back to the origin of time and space. Andromeda, as an example, is our nearest neighbour, a spiral shaped galaxy, once thought to be a mere nebula, which reinforces the fact that the space in space (space in the universe), is expanding.

The Andromeda galaxy is a fascinating object in that manner: it both helps us understand our own origin and provides an adventurous outlook into the future. Will the two galaxies eventually collide, due to their movement towards each other? Astronomers suggest that they will not collide, but perhaps merely get closer and closer in their gravitational orbits, until, when close enough in this 'dance', they will repel each other again, or slightly merge.

The Andromeda Galaxy is the nearest large galaxy neighboring our Milky Way Galaxy. It is a spiral disk shaped galaxy similar to our own. It is located in the Andromeda constellation, faintly visible in the night sky to an unaided eye. Calculations are now showing that the velocity in which it is approaching our galaxy is 50 km per second.

The Doppler shift is named after Christian Doppler, an Austrian physicist who discovered in 1842 that "the observed frequency of a sound wave depends on the velocity of the source, relative to the observer." Doppler later realized the same mechanism applies to light emanating from a moving object.

For endeavoring explanation of the 'why' component of the expanding universe

And it ended up being a galaxy not so far away...

The big bang theory was actually constructed on the concepts of the expanding mature of the universe. Astronomers and cosmologists acknowledged that if the universe is expanding NOW (as measured by the red and blue shi

Some common words found in the essay are:
Edwin Hubble, Milky Galaxy, Andromeda Galaxy, Nebula Interpreting, Doppler Austrian, Andromeda Galaxy's, Vesto Slipher, , andromeda galaxy, Nov- Dec, expanding universe, doppler shift, Andromeda Galaxy-, universe expanding, towards blue, blue shifted, blue shift, spectra doppler shift, objects moving, spectra doppler, moving red,
Approximate Word count = 1347
Approximate Pages = 5 (250 words per page double spaced)