Franklin Ramón Chang-Díaz (born April 5, 1950, San José, Costa Rica) is an American mechanical engineer, physicist, and former NASA astronaut. He is the sole founder and CEO of Ad Astra Rocket ...

Lunar Run Ride along on an unmanned lunar cargo trip with the VASIMR plasma rocket developed by Ad Astra, a company founded by former astronaut Franklin Chang Diaz.The silent video starts with an ...