The Legacy of the Moon Trees

In early 1971, the Apollo 14 mission embarked on the third human journey to the lunar surface. While crew members Alan Shepard and Edgar Mitchell explored the Moon, Command Module Pilot Stuart Roosa orbited above with a unique set of passengers: hundreds of tree seeds. A former U.S. Forest Service smoke jumper, Roosa participated in a collaborative experiment between NASA and the Forest Service to see how space travel might affect biological seeds.

Before the mission, Forest Service Chief Ed Cliff reached out to Roosa, who had previously worked for the agency. Stan Krugman of the Forest Service oversaw the selection process, choosing five varieties: sycamore, sweetgum, redwood, Douglas fir, and loblolly pine. These seeds were stored in small plastic bags inside a metal canister, which was kept in Roosa’s personal kit aboard the command module Kitty Hawk. While thousands of seeds traveled to lunar orbit, the project faced a setback upon their return to Earth. During decontamination, the seed bags ruptured, exposing the contents to a vacuum and raising concerns about their survival.

Despite these issues, technicians were able to collect and germinate the seeds. Initial attempts in Houston faced challenges, but success was achieved after the remaining seeds were transferred to Forest Service stations in Mississippi and California. The resulting saplings were eventually distributed across the globe to honor the Apollo program and Stuart Roosa’s career. Many of these “Moon Trees” were planted between 1975 and 1976, coinciding with the United States’ bicentennial celebration.

Because the selected species were native to southern and western regions, they were not distributed to every state. However, they were planted in 40 states and various international locations, including Brazil, Switzerland, and Japan. Notable plantings include a loblolly pine at the White House, as well as specimens at Valley Forge, Philadelphia’s Washington Square, and several NASA centers. Researchers noted that there is no significant difference between these trees and their Earth-grown counterparts, even decades later.

Stuart Roosa, whose path led him from fighting fires as a smoke jumper to serving as a military test pilot and eventually an astronaut, retired as an Air Force Colonel in 1976. He passed away in 1994, but the trees continue to grow as a living tribute to the pioneering spirit of the Apollo era. These surviving specimens serve as a lasting botanical monument to the human exploration of the lunar environment.

Sources: Hacker News

Aggregated summary. Original: Hacker News