Question

1. long ago, the constellation cassiopeia was shaped like a w. today it is shaped like a squiggly line. why does it look different today than it did many years ago?

Explanation:

The stars within the constellation Cassiopeia are in motion through space. Over long periods of time, their relative positions change, causing the overall shape of the constellation as seen from Earth to appear different.

Answer:

The stars in Cassiopeia have moved over time, changing its apparent shape.