space grass
n.— «A field researcher has also donated a rare sample of what UFOlogists refer to as “space grass.” “The sample I have comes from a sighting that occurred in 1973 in Westmoreland County,” he said. “Some witnesses spotted a UFO above some trees, and these metallic strands were found in the branches—origins unknown.”» —“He has a vision for Lancaster” by Carla Di Fonzo Intelligencer Journal (Lancaster, Pennsylvania) May 3, 2006. (source: Double-Tongued Dictionary)