- Clatsop State Forest (Wikipedia)
Clatsop State Forest is a state forest in Clatsop and Columbia counties in the U.S. state of Oregon. It is managed by the Astoria District of the Oregon Department of Forestry.
- Arecibo message (Wikipedia)
The Arecibo message is an interstellar radio message carrying basic information about humanity and Earth that was sent to the globular cluster Messier 13 (M13) in 1974. It was meant as a demonstration of human technological achievement rather than a real attempt to enter into a conversation with extraterrestrials.