There are many asteroids in so-called near-Earth orbits, with nearly zero delta-V (beyond Earth escape) to reach them and return to Earth. The delta-V is even less than an insertion into lunar orbit.<p>Mostly it&#x27;s just a matter of being patient and letting the orbits phase, given the right nudge.<p>(Also, note that delta-V is not thrust. Delta-V is a change in velocity, thrust is force.)