Exoplanets

"The prefix exo comes from the Greek and means outside. Exoplanets are far, far outside our own solar system. Astronomers have confirmed more than 5,000 exoplanets orbiting distant stars."https://earthsky.org/astronomy-essentials/what-are-exoplanets/?mc_cid=3ee37b044c&mc_eid=7fad6b6067