Bulan: Bina pantaraning révisi

'''Bulan '''ento awak astronomi ané mapiteh ngilehin [[Gumi]]. Tusing ada satelit alami Guminé ané lén sajaban Bulan. Bulan ento satelit paling gedé ané ka-5 di [[Tata Surya|tata surya]] tur satelit paling gedé yén padaang tekén planét ané kailehin. Masih Bulan ento satelit paling kentel ané ka-2 di tata surya, sasubané Io, satelit Jupitér.<ref>Schubert, J. (2004). "Interior composition, structure, and dynamics of the Galilean satellites.". In F. Bagenal; et al. (eds.). ''Jupiter: The Planet, Satellites, and Magnetosphere''. Cambridge University Press. k. 281–306. ISBN 978-0-521-81808-7</ref>

Bulan kawentuk 4,51 milyar tiban ané liwat, tusing makelo sasubané Guminé. Manut téori ané paling katerima dinané ené, Bulan kawentuk uli bok muah sisan tabrakan Gumi ajak planét lénan, sagedé [[Mars]], ané maadan [[Theia]].<ref>{{Cite web|url= http://www.psrd.hawaii.edu/Dec98/OriginEarthMoon.html|title= Origin of the Earth and Moon|publisher= G. Jeffrey Taylor, Hawai'i Institute of Geophysics and Planetology}}</ref>