The Ingenuity Mars helicopter's blades are spinning ahead of its first flight — making the NASA team 'nervous and excited'

"I'm feeling a lot of emotions": NASA's Ingenuity engineers are getting antsy for their helicopter's first flight.
Read more: https://www.businessinsider.com/mars-helicopter-spins-blades-first-flight-nasa-team-nervous-2021-4?source=Snapzu