space shuttle vs spacecraft

space shuttle and spacecraft both are nouns.

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

As nouns, spacecraft is a hypernym of space shuttle; that is, spacecraft is a word with a broader meaning than space shuttle:

space shuttle: a reusable spacecraft with wings for a controlled descent through the Earth's atmosphere
spacecraft: a craft capable of traveling in outer space; technically, a satellite around the sun

Other hypernyms of space shuttle include ballistic capsule, space vehicle.

space shuttle (noun)	spacecraft (noun)
a reusable spacecraft with wings for a controlled descent through the Earth's atmosphere	a craft capable of traveling in outer space; technically, a satellite around the sun