Hubble's Salvation: Corrective Optics Save Humanity's Cosmic Vision

About this episode

This episode discusses the transformative servicing mission of the Hubble Space Telescope in 1990, focusing on the installation of corrective optics that saved its functionality.

This is your Astronomy Tonight podcast. Today marks June 12th, and if we rewind our cosmic calendar to the year 1990, we find ourselves witnessing one of the most transformative moments in the history of space exploration. On this very date, astronauts aboard the Space Shuttle Discovery completed the first servicing mission to the Hubble Space Telescope, and what they accomplished was nothing short of miraculous. You see, Hubble had launched just a few months earlier with great fanfare and tremendous expectations. The scientific community was thrilled. The public was excited. And then, disappointment struck. The telescope's primary mirror had a slight flaw, a spherical aberration that was essentially causing Hubble to be nearsighted. Images coming back from space were blurry and frustrating. It was like having the most expensive pair of glasses in the world and realizing they needed a prescription adjustment. But rather than accept defeat, NASA engineers and astronauts rose to the challenge. On this day in 1990, astronauts installed corrective optics, essentially putting glasses on Hubble itself. They also replaced solar panels and made other critical repairs during this daring…

Topics covered

• Hubble Space Telescope
• space exploration
• NASA missions
• corrective optics
• astronomy history
• servicing missions

Keywords

• Hubble
• NASA
• space telescope
• corrective optics
• astronauts
• servicing mission
• spherical aberration
• space exploration
• astronomy

Mentioned in this episode

Organizations: NASA, Hubble Space Telescope

Products: corrective optics, solar panels

Places: Earth

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