The Milky Way we see in the sky is simply our edge-on view of our home Galaxy.
Indicate whether the statement is true or false
Question 2
In general, when we compare the mass of a galaxy or cluster of galaxies to the amount of light it emits (that is, when we look at it mass-to-light ratio), we expect that
A) the higher amount of mass relative to light (higher mass-to-light ratio), the lower the proportion of dark matter.
B) the higher the amount of mass relative to light (higher mass-to-light ratio), the greater the proportion of dark matter.
C) the amount of light should be at least one solar luminosity for each solar mass of matter (mass-to-light ratio less than or equal to 1).
D) the higher the amount of mass relative to light (higher mass-to-light ratio), the older the galaxy or cluster.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Nail structure, side view and cross-sectional view.
Aerial view of old hutong area, Beijing.
The fact that a mother works outside the home has no negative effect on the well-being of her child ...
Right Lateral View of Vertebral Column
Lateral view of the arches