The figure shows an image of our galaxy, the Milky Way, at dust-penetrating wavelengths. It can be classified as which one of the following galactic types?
A) spiral
B) irregular
C) elliptical
D) red giant

Question

The figure shows an image of our galaxy, the Milky Way, at dust-penetrating wavelengths. It can be classified as which one of the following galactic types? 
A) spiral 
B) irregular 
C) elliptical 
D) red giant

Quizplus · Accepted Answer

The image shows clear spiral arms, which is a characteristic feature of spiral galaxies like the Milky Way. Irregular galaxies lack any distinct shape, elliptical galaxies have a smooth and oval-like shape, and red giants are a type of star, not a galaxy.

The Figure Shows an Image of Our Galaxy, the Milky