What is the primary astronomical instrument named in honor of Edwin Hubble, launched in 1990?

Answer

The Hubble Space Telescope (HST).

The enduring recognition of Hubble's work is symbolized by the Hubble Space Telescope (HST), launched in $1990$, which continues his legacy by capturing high-resolution images and measuring distances across vast cosmic scales.

What is the primary astronomical instrument named in honor of Edwin Hubble, launched in 1990?
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