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Space PhenomenonPlay
A comet is a celestial event, not a regular occurrence, like a star or planet. SlideThe comet’s appearance was an extraordinary event that had astronomers excited.
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Visible TailPlay
When near the sun, comets often have a visible tail, which distinguishes them from other space bodies. SlideThe comet’s tail stretched across the night sky, clearly visible from Earth.
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Not a StarPlay
Comets are sometimes confused with stars; remember, comets move and have tails. SlideAlthough it looked like a star at first, the movement and tail revealed it was a comet.