Which scientific instrument, launched in 1990, fundamentally transformed our understanding of the universe despite initial technical problems with its primary mirror?

The scientific community has witnessed many revolutionary product launches that transformed both research capabilities and our understanding of the world. From equipment that allows us to see the previously invisible to innovations that opened entirely new fields of study, these breakthroughs represent pivotal moments in scientific progress. Test your knowledge about one of the most significant scientific instrument launches that revolutionized an entire field of study.

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Hubble Space Telescope
Large Hadron Collider
Voyager Space Probe
Scanning Tunneling Microscope