Galaksi itu apa sih? Jelaskan dalam bahasa sunda ya

Galaksi nyaéta sistim wates gravitasi nu kacida gedéna tina perbéntangan, gas jeung kebul antarbéntang, plasma jeung (meureun) bahan poék nu teu katempo (unseen dark matter). Galaksi umumna ngandung sapuluh juta nepi ka samiliar (107 nepi ka 1012) béntang, nu sakabéhna ngorbit ka puseur gravitasi nu sarua. In addition to single stars and a tenuous interstellar medium, most galaxies contain a large number of multiple star systems and star clusters as well as various types of nebulae. Most galaxies are several thousand to several hundred thousand light years in diaméter and are usually separated from one another by distances on the order of millions of light yéars.