- The universe is all of space and time and their contents. It comprises all of existence, any fundamental interaction, physical process and physical constant, and therefore all forms of matter and energy, and the structures they form, from sub-atomic particles to entire galactic filaments. Since the early 20th century, the field of cosmology establishes that space and time emerged together at the Big Bang 13.787±0.020 billion years ago and that the universe has been expanding since then. The portion of the universe that can be seen by humans is approximately 93 billion light-years in diameter at present, but the total size of the universe is not known.
- Cougar Mountain Regional Wildland Park (kingcounty.gov)
The 3,000+ acre Cougar Mountain Regional Wildland Park is connected to Squak Mountain State Park by Cougar-Squak Corridor Park, which together is about 5,000 acres of protected area in the public land known as the “Issaquah Alps.” The park is between 1,000 and 1,600 feet above sea level.