Isaacson said he still owns the drone company, CAVU Investments, but moved back to Oregon to lead One Gro. He said he plans to sell the drone business.
Arnold earlier this year sought people to invest cash in One Gro. Isaacson, who was working as a hard-alcohol distributor to retailers in Illinois at the time, responded.
A key problem emerged soon after the observatory's launch, notes Thomas LaVigna of NASA's Goddard Space Flight Center in Greenbelt, Md., who supervised efforts to boost GRO.
After ground controllers commanded the craft to inject high-pressure propellant from a fuel tank into a pipe leading to the observatory's thrusters, they noticed several things amiss.