All the characters are actually lists with one missing entry. The simple ones are the planets and the months, after that people started searching and found the rest:

 

m h d w m y

(second) minute hour day week month year 

 

s t w t f s

sunday (monday) tuesday wednesday thursday friday saturday

 

j f m a m j j a o n d

january feburuary march april may june july august (september) october november december

 

m v m j s u n p

merkus venus (earth) mars jupiter saturn uranus neptun pluto 

 

l d k p o f g s

life domain kingdom phylum (class) order family genus species

 

a p f p b

Animalia, Plantae, Fungi, Protista, (Archaea), Bacteria

 

g x u v i t m

gamma x-ray uv visible infrared terraherz microwave (radio)

 

The first character of the missing entries is

S M S E C A R

 

Anagram it and you get

SCREAMS

 

The solution redirects  to