Source: wikibot/trans-earth-injection
= Trans-Earth injection
{wiki=Trans-Earth_injection}
Trans-Earth Injection (TEI) is a space maneuver used to send a spacecraft from a trajectory around the Earth onto a trajectory that will take it to the Moon or beyond, typically on a pathway that allows it to exit Earth’s gravitational influence. This maneuver is often executed during missions that involve lunar exploration or interplanetary travel.