How are interstellar bubbles made?
A) by the collapse of a gas cloud to form stars
B) by the ejection of planetary nebulae from low-mass stars
C) by the winds of massive stars and supernovae explosions
D) by collisions between the Milky Way and satellite dwarf galaxies
E) by the rapidly rotating magnetic fields of pulsars

Question

Quizplus · Accepted Answer

Interstellar bubbles are made by the winds of massive stars and supernovae explosions. These powerful events create shock waves that sweep up surrounding gas and dust, compressing it and creating a bubble-like structure. Over time, the bubble expands and becomes more visible as it interacts with the surrounding interstellar medium. Planetary nebulae and pulsars can also create bubbles, but they are not typically as large or powerful as those formed by massive stars and supernovae. The other choices listed do not accurately describe the process of interstellar bubble formation.

How Are Interstellar Bubbles Made