Travelling from the surface of Earth to Earth orbit is one of the most energy intensive steps of going anywhere else. -Don Pettit https://www.nasa.gov/mission_

Travelling from the surface of Earth to Earth orbit is one of the most energy intensive steps of going anywhere else. -Don Pettit https://www.nasa.gov/mission_pages/station/expeditions/expedition30/tryanny.html https://www.nasa.gov/mission_pages/station/expeditions/exped...