Question: when was the hubble space telescope launched by space shuttle discovery
[{'answer': '1990', 'provenance': [{'wikipedia_id': '40203', 'title': 'Hubble Space Telescope', 'start_paragraph_id': 1, 'start_character': 127, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '40203', 'title': 'Hubble Space Telescope', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 577, 'bleu_score': 0.5375406795766441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6553113125846568846}, 'section': 'Section::::Abstract.'}]}]