Hubble 25th Anniversary Medallion

Information

      On April 25, 1990, astronauts aboard the Space Shuttle Discovery deployed the Hubble Space Telescope into Earth orbit, and launched a new era of astronomical discovery. Now, 25 years later, we celebrate a remarkable milestone for a space observatory whose ground-breaking investigations have brought revolutionary changes in our understanding from planets, stars, nebulae, and galaxies to the very frontiers of the cosmos.

Source: https://science.nasa.gov/3d-resources/hubble-25th-anniversary-medallion/