These locations serve as comprehensive resources for understanding the diversity and characteristics of stars in the Universe. What sets them apart is that the stars within a cluster were formed around the same time, from identical materials, and are located at roughly the same distance from Earth. This allows us to confidently attribute any variations among them to their inherent qualities, free from the distortions caused by varying distances and other influences.
Show
The Universe
Episode
S04E07
Air Date
Sep 29, 2009
Season 4 Episodes
S04E01
Death Stars
S04E02
The Day the Moon Was Gone
S04E03
It Fell From Space
S04E04
Biggest Blasts
S04E05
The Hunt for Ringed Planets
S04E06
10 Ways to Destroy the Earth
S04E07
The Search for Cosmic Clusters
S04E08
Space Wars
S04E09
Liquid Universe
S04E10
Pulsars & Quasars
S04E11
Science Fiction, Science Fact
S04E12
Extreme Energy