更新时间：2025-08-07 14:28:37
Maybemanypeopleknowtheuniverseisverybig.Somescientiststhoughttheuniverseseemstoberapidlyexpandingitscomponentgalaxiesmovingeverfartherapart.Soit’sverybig.Therearemanyheavenlybodiesintheuniverse.Ifyoustandinspace,youwillseemanybeautifulstars,likesunandotherplanets.
Andthen,let’srecognizeoursolarsystem.Thereareeightplanetsinoursolarsystem.They’reMercury,Venus,Earth,Mars,Jupiter,Saturn,UranusandNeptune.TheSunisveryhot.Itssurfacehas5600℃.Itsgravitationisverystrong.SotheEarthgoesaroundSun.AndtheEarthisourhome.We’relivingontheEarth,anditisthemostbeautifulinthesolarsystem.Ithaslotsofwaterandplants.AndthemoonistheEarth’spartner.ItgoesaroundtheEarth.AndotherplanetsareveryfarfromtheEarth.Sothepeoplecan’treachthemandnoneofthemhasanenvironmentwithair.Thepeoplealsocan’tliveinthem.
Finally,let’sseeintheskyinthenight.Thereismuchbeautifulandmagicviewintheuniverse.
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