Seeing Earth from space, perhaps? (5,4)
I believe the answer is:
world view
'perhaps?' is the definition.
I know nothing about this answer so I can't tell whether this works.
'seeing earth from space' is the wordplay.
'seeing earth' becomes 'world' (synonyms).
'from' means one lot of letters go next to another.
'space' becomes 'view' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'world'+'view'='WORLD-VIEW'
Can you help me to learn more?
(Other definitions for world view that I've seen before include "only an astronaut can have?" , "Philosophy of life" , "outlook on life" , "only had by extremely high-flyers" , "enjoyed by astronauts" .)