Boeing X-37B Orbital Test Vehicle

X-37B  Autonomous reusable spacecraft launched from the Falcon 9 rocket or other platforms as required.  Capable of extended orbits, science experiments and payload deployments.  

We are in the Wright Brothers period of space flight.  Propulsion and purpose remain the visions and challenges for future NASA flights.  Before we can expect to expand the reaches of this planet, we must conquer earth's challenges.  Advancement at home and in space are all based on the same accomplishments. 

Boeing T-X at 2019 Paris Air Show the maned version of the above.

Source  Boeing corp., NASA