space vehicle vs spacecraft

space vehicle and spacecraft both are nouns.

Word	Noun	Adjective	Verb	Adverb
space vehicle	Yes	No	No	No
spacecraft	Yes	No	No	No

As nouns, space vehicle and spacecraft are synonyms defined as:

space vehicle and spacecraft: a craft capable of traveling in outer space; technically, a satellite around the sun

Other synonyms of space vehicle include ballistic capsule.

space vehicle (noun)	spacecraft (noun)
a craft capable of traveling in outer space; technically, a satellite around the sun	a craft capable of traveling in outer space; technically, a satellite around the sun