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jenna stack
Question | Answer |
---|---|
star | a huge, hot, glowing ball of gas in the sky |
nuclear fusion | when the nuclei of two or more atoms join to form a single, larger nucleus |
light-year | the distance light travel in one earth year |
magnitude | the brightness of a star |
constellation | a group of stars formed in the sky that make a picture |
galaxy | a huge groping of stars |
solar system | the Sun and the cluster of bobies around it |
astronomical unit (AU) | the average distance of Earth from the sun |