Lego Space Shuttle Discovery Reviews, Issues and More: Why the 2,354-Piece Set Gets Positive Impressions The Lego Space Shuttle Discovery is made up of 2,354 pieces that are ideal for adult builders. There is also a complementary Hubble telescope payload with the Hubble Space Telescope Lego piece! Photo : Mark Wilson/Getty Images Lego recently launched its new NASA Space Shuttle Discovery set as a part of NASA's 40th anniversary celebration of the first Space Shuttle flight mission launched in April 1981. The Lego Space Shuttle Discovery is made up of 2,354 pieces that are ideal for adult builders. There is also a complementary Hubble telescope payload with the Hubble Space Telescope Lego piece!