Question:

Is there anything in the space that seems blueshifted to us?

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i understand that our galaxy's gravitational field attracts it but in space everything is moving away from each other.

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  1. Space itself is expanding, and due to the nature of this expansion, the farther away something is, the faster it moves away from us.  Closer things, like nearby galaxies, show less expansion.  They are also close enough to have gravitational effects on each other, so all the galaxies in our "local group" are in what is like a "cosmic playground", they are all running around each other and occasionally merge.  Anyway, as others have said, the Andromeda galaxy is currently headed toward us.

    It is worth noting, however, that inflation is not stopping and regardless of the gravity, it will eventually tear apart our local group of galaxies, then our galaxy, then our solar system, and eventually individual atoms.


  2. The Andromeda galaxy is moving toward us.

  3. Every thing is in the red shift . The other thing is the distance is so great that even the gravity of the galaxy doesn't extend that far.

  4. The Andromeda galaxy is coming towards our Milky Way & seems blueshifted.....The fact that most things are moving apart isdue to the fact that the force pulling them apart is stronger than the GRAVITATIONAL field.....

  5. Yes, for example the Andromeda galaxy is blue-shifted. That is because it is in our galaxy clutter and we will eventually merge together, Andromeda, the Milky Way and a handfull of other galaxies.

    I think I also read that about 2% of Hubble's observations were not fitting the red-shift pattern.

  6. Your additional comment "but in space everything is moving away from each other." shows you're not understanding correctly. As others have mentioned, space is expanding, but local forces such as gravity are able in some instances to overcome the expansion. In a literal sense, the space between the Earth and Sun, as well as between the atoms of your body is expanding, but gravity and the electroweak force are able to keep our orbit intact, and your body in one piece.

    Most of the stars we see are embedded in our own galaxy, and the gravitational force of the Milky way keeps the stars in place. Just as many of them are blueshifted as red, since we all orbit a common center. So the expansion of the Universe is really only observable between galaxies (and a few things like quasars). The gravity of our local group (including Andromeda) keeps us bound to our nearby galaxies, and our local group is rushing towards the Virgo supercluster.

    So don't assume that "everything is moving away from each other". That's simply wrong. Most things are, but there is a huge difference between 'most' and 'everything'.

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