Planets are celestial bodies that orbit stars, with our solar system hosting eight recognized planets around the Sun. These range from rocky, terrestrial worlds like Earth and Mars to gas giants such as Jupiter and Saturn. Planets form from protoplanetary disks of dust and gas, taking shape over millions of years. Unlike stars, they do not generate light but reflect it from their parent star. Each planet has unique features—Mercury’s extreme temperatures, Venus’ thick atmosphere, or Neptune’s fierce winds. Some planets even host moons, rings, or potential conditions for life. Beyond our solar system, exoplanets orbit distant stars, expanding our search for habitable worlds. Studying planets helps uncover the origins of the cosmos and humanity’s place within it.