One piece of evidence that can help astronomers sort out how the planets in our solar system formed is
A) discovering other galaxies of stars beyond the Milky Way
B) counting the number of moons around each planet in our own solar system
C) finding circumstellar disks of material around nearby stars
D) counting the craters on the surface of Jupiter, Saturn, Uranus, and Neptune
E) measuring variations in the amount of snowfall in northern Canada during this century

Question

Quizplus · Accepted Answer

The presence of circumstellar disks around nearby stars can indicate the early stages of planet formation, as the disk of material eventually coalesces into planets. Observing these disks can provide clues about the conditions and processes involved in the formation of our own solar system. None of the other options are directly related to planet formation in our own solar system.

One Piece of Evidence That Can Help Astronomers Sort Out