Summarize this for a second-grade student:

NAME_1 is the fifth planet from the Sun and the largest in the Solar System. It is a gas giant with a mass one-thousandth that of the Sun, but two-and-a-half times that of all the other planets in the Solar System combined. NAME_1 is one of the brightest objects visible to the naked eye in the night sky, and has been known to ancient civilizations since before recorded history. It is named after the Roman god NAME_1.[19] When viewed from Earth, NAME_1 can be bright enough for its reflected light to cast visible shadows,[20] and is on average the third-brightest natural object in the night sky after the NAME_2 and Venus. Use words in all capital letters at least 10 times to highlight key points.
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