You observe several massive stars within a cool nebula. Which of the following is the most likely explanation?
A) The massive stars ejected some of their mass to form the nebula.
B) The massive stars formed within the nebula.
C) The massive stars are flying through the nebula.
D) The massive stars have reduced the temperature of the nebula's gas.

Question

Quizplus · Accepted Answer

Massive stars often form within nebulae, which are dense regions of gas and dust in space. The gravitational collapse of parts of these nebulae can lead to the formation of stars.

You Observe Several Massive Stars Within a Cool Nebula