Notice all the objects in the area. It's a busy region; we're looking toward the center of the Milky Way!
Here is a "zoom-in" on the Lagoon Nebula:
The bright pink "flame" in the upper right is M8.
A 90-degree turn to the right from the above image:
The smaller nebula with blue reflection is the Trifid, M20.
The Lagoon Nebula shines by ionized hydrogen (energy source is hot, bright young stars) which emits red light as it reacquires electrons.
For contrast, here is the same nebula in a different light. It's the same technique used in many Hubble images. This image was produced combining three individual images obtained in three different filters, [OIII] (as blue channel), Halpha (as green channel) and [S II] (as red channel).
