Wonder — 2 museum-grade prints that set the mood. The Apollo 17 Blue Marble photograph, taken en route to the Moon in December 1972, became one of the most reproduced images of Earth and helped galvanise early environmental awareness. Cassini orbited Saturn from 2004 to 2017, revealing ring dynamics and moon systems previously invisible from Earth. The Voyager program's Golden Record carries music and greetings intended for any civilization that might one day intercept the probes — a message in a bottle launched at 38,000 mph. Voyager 1's 1990 Pale Blue Dot portrait and its 2012 crossing into interstellar space remain touchstones for how humans picture our place in the cosmos.