SpaceX
... that SpaceX is working on bringing orbital rockets back to the launchpad and landing them on landing legs?
... that <b id="mwBqQ"><a href="./SpaceX_reusable_launch_system_development_program" id="mwBqU" rel="mw:WikiLink" title="SpaceX reusable launch system development program">SpaceX</a></b> is working on bringing orbital rockets back to the launchpad and landing them on landing legs?