AĀ planetĀ is anĀ astronomical bodyĀ orbitingĀ aĀ starĀ orĀ stellar remnantĀ that is massive enough to beĀ roundedĀ by its ownĀ gravity, is not massive enough to causeĀ thermonuclear fusion, and ā according to theĀ International Astronomical UnionĀ but not all planetary scientists ā hasĀ cleared its neighboring regionĀ ofĀ planetesimals.
Last Updated on 6 hours ago by pinc