Comet Nishimura, as imaged on September 7. On Tuesday, the comet will pass within 78 million miles of Earth, the closest it will get for more than 400 years.

Newly Discovered Green Comet is Passing by Earth This Week

Comet Nishimura, which appears only once every 435 years, is on track to approach the sun and shoot into deep space

Collective Spark
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