Experience the night sky in Discovery Center's planetarium. Our multimedia astronomy presentations cover planets, stars, space exploration, and constellations. Shows are tailored to your group's interest and ability level.
Grades: K & Up
Illinois State Goals: 4A, 5A, 11A, 12DF, 16A
Length: 30 minutes
Cost: $30 per show; up to 30 students
The speed of sound, or Mach 1, is approximately 700 miles per hour, depending on elevation. Today, commercial passenger jets move over twice that speed. Some military planes can even reach speeds in excess of Mach 3, which is over 2,000 miles per hour! Learn more about the speed of sound in our Air and Flight exhibit.
