Inside JPL's First Open House in 4 Years: A Space Fanatic's Dream Come True.

NASA's Jet Propulsion Laboratory (JPL) held its first Explore JPL event in four years, with 36,000 tickets available for the two-day event. Visitors got to take a trip through Mission Control, check out full-scale replicas of machines sent to other planets, and talk to the people who built them. The event included a replica of the Mars ascent vehicle, a model of the Perseverance rover, and a 1:1 replica of Ingenuity, the first helicopter to fly on Mars. The Scarecrow rover was also on display, which rover drivers use to practice their skills here on Earth.