Assertion: lunar elevator | /r/HasProperty | proposed transportation system
Facets:
value: for moving a mechanical climbing vehicle
type: PURPOSE
Source sentences:
text: A lunar space elevator or lunar spacelift is a proposed transportation system for moving a mechanical climbing vehicle up and down a ribbon-shaped tethered cable that is set between the surface of the Moon "at the bottom" and a docking port suspended tens of thousands of kilometers above in space at the top.