OrbitalHub

NASA dicit:

In February 2020, NASA’s Perseverance Rover began its long journey to Mars by first traveling across the United States. The rover was built at NASA’s Jet Propulsion Laboratory in Southern California and then carefully packed and flown to NASA’s Kennedy Space Center in Cape Canaveral, Florida. There, engineers integrated the rover with the spacecraft that carries it to Mars, and the Atlas V rocket chosen to send it on its way.

Video credit: NASA Jet Propulsion Laboratory