Also on board were remains of physicist and space visionary Gerard K. O'Neill, noted rocket scientist Krafft A. Ehricke, and 20 others.
[4] Dr. Eugene Shoemaker — a famous planetary geologist and co-discoverer of Comet Shoemaker-Levy 9 – was launched to the Moon on NASA's Lunar Prospector mission in 1998: Celestis helped friends of Dr. Shoemaker include a sample of his cremated remains on that mission.
[5] Mercury 7 astronaut L. Gordon Cooper,[6] Star Trek actor James Doohan ("Mr. Scott"),[7] and a host of others from various walks of life were launched on board The Legacy Flight in 2007.
[8] Titanic explorer Ralph White was on board the Discovery[9] and Pioneer[10] flights.
[3] Celestis also helps people prearrange their own memorial spaceflights for the future.