sentence2_structure: A telescope<>is used<>to make objects in space appear closer$$$A telescope<>to make<>objects in space appear closer$$$objects in space<>appear<>
sentence1: The team will make further observations with ground-based telescopes and the Hubble Space Telescope to confirm whether the quasar is as it appears or if the image is being distorted by gravity from another object, an effect known as gravitational lensing.
sentence2: A telescope is used to make objects in space appear closer.
question: What instrument is used to make objects in space appear closer?