[jwalsh07]

What do you think would be the reason for not observing dark matter in our galaxy? Are there any implications if dark matter is not observed in our galaxy but is observed in other galaxies?

[ThinkPlease]

What do you think would be the reason for not observing dark matter in our galaxy? Are there any implications if dark matter is not observed in our galaxy but is observed in other galaxies?

Dark matter is only inferred in other galaxies as well. Dark matter has never been directly observed. Only their gravitation effects have been observed.

[PatrickHenry]

What do you think would be the reason for not observing dark matter in our galaxy? Are there any implications if dark matter is not observed in our galaxy but is observed in other galaxies?

The reason it's called "dark matter" is because it isn't observable. It's presumed to exist because otherwise there is no accounting for the apparent gravitational effects seen in the rotation of galaxies. This seems easier to detect with distant galaxies rather than our own, as we're inside it. I really don't know if our own galaxy has been observed to require the presence of dark matter to explain its rotation. An astronomer would know this, and we have a few on this website. They'll speak up if I've blown this answer.