Final answer:
The statement is true; the verb 'found' in the sentence is a past-participle used in the present perfect tense.
Step-by-step explanation:
The sentence "Scientists have found ways to explore the night sky" contains a past-participle verb. The past-participle in the sentence is 'found'. Therefore, the statement is true. A past-participle verb is commonly used in perfect tenses and passive voice constructions. In this case, 'have found' is in the present perfect tense, which indicates an action that was completed at an unspecified time in the past and is relevant to the present.