Imagine it is the evening of August 25, 1989. You are partying with some scientists in California. Dancing on your right is Carl Sagan while on your left Chuck Berry is playing Johnny B. Goode. This is not a dream.
The celebration occurred a day after the Voyager 2 spacecraft completed its flyby of Neptune and began its mission into interstellar space.
Here’s more info about the flyby and the party.
Photo Credit: NASA/JPL-Caltech