Study reveals secrets of comet 46P/Wirtanen

In 2018, comet 46P/Wirtanen made its closest approach to Earth on December 16, 2018. Due to the proximity to the holidays, the comet was nicknamed the “Christmas Comet” and exuded an interesting green glow. It passed 7.1 million miles from Earth which is the closest pass it had made to the Earth in centuries. While 46P/Wirtanen has been gone for … Continue reading