look into vs explore

look into and explore both are verbs.

Word	Noun	Adjective	Verb	Adverb
look into	No	No	Yes	No
explore	No	No	Yes	No

As verbs, explore is a hyponym of look into; that is, explore is a word with a more specific, narrower meaning than look into:

Other hyponyms of look into include research, search, examine, probe, research, experiment.

look into (verb)	explore (verb)
examine so as to determine accuracy, quality, or condition	inquire into
investigate scientifically	travel to or penetrate into
	inquire into a subject in detail
	examine (organs) for diagnostic purposes