New 'Star Trek: Discovery' trailer for season 4 still sounds like every other season

It's difficult to tell what a planet is made of without drilling in, but finding habitable exoplanets that have the "right stuff" for life may be easier if we look at chemical abundances in the star to confirm there's iron or carbon present in the system.

The planet does not fall far from the star

Weird shape-shifting clouds of dust seem to be orbiting a distant star