There could be 15 trees throughout the UK grown from seeds that were flown around the moon by NASA on the Apollo 14 mission, and scientists are trying to find them.
The Moon Trees, grown from orbiting seeds flown in 1971, could be anywhere in the UK, including in private gardens, according to the Royal Astronomical Society.
NASA astronaut Stuart Roosa took 500 seeds from Sycamore, Loblolly Pine and other varieties of trees with him as the Apollo 14 capsule orbited the moon.
Most were planted in the US, but it is thought about 15 came to the UK - and now the Royal Astronomical Society (RAS) and UK Space Agency are trying to find them.