Jump to content

Our Galaxy and Andromeda´s Galaxy


Flak
 Share

Recommended Posts

Acording to a science magazine, the people studing the cosmos finds the Andromeda`s Galaxy so similiar to ours that they think it is like a mirror. Maybe there are some kind of symetry on space, or that the galaxies form in the same way.

Link to comment
Share on other sites

The laws of physics being the same for all observers this observation is neither startling nor unexpected. Also given our perspective of the cosmos is firmly embedded inside our galaxy, making statements about the absolute similarity between our galaxy and any other is based on errorneous assumptions.

Link to comment
Share on other sites

On another note (this doesn't refer to andromeda) there is the possiblity that if space is bound on a 3sphere (ie a sphere in 4D space) then light could reach us from the 'back' of galaxies. It is of course, reliant on the age of the universe and whether the light from complex structures such as galaxies has had time to tranverse the 'great circle' since formation but it leads to a rather interesting and bizarre conclusion. That of being able to witness the 'same' structures at two distinct points in their evolution (assuming its position on any such great cirlce is not exactly opposite to ours).

Link to comment
Share on other sites

It seems Andromeda has around 30 million suns and out Milky way has only 2.6 million suns.
Sorry to nitpick (was just a reading mistake in the article), but that's the predicted mass of their central black hole in solar masses. The Milky Way itself has - depending on who you speak to - anywhere from 100 billion to 400 billion stars, and the Andromeda Galaxy has something like two to four times that.

 

In other words, the Andromeda Galaxy would be like a "mirror" of the Milky Way, but quite a bit larger. There's also been talk recently that the Milky Way Galaxy might actually be a bar spiral galaxy, though I can't back that up with an article.

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.