QUOTE: EXT. OUTER SPACE - NIGHT
ANSWER: There is no NIGHT nor DAY in outer space. EXT. OUTER SPACE is all that is needed.
QUOTE: A meteorite flies by and it travels quickly towards Earth.
A meteoroid travels in space.
A meteor travels through the atmosphere. (a shooting star)
A meteorite is all the above that you can pick up from the ground.
Hope this helps some!