

Comet 46P/Wirtanen, first discovered in 1948, makes its way around the sun every 5.4 years. And this time it's making its closest approach to Earth.
via CBC | Top Stories NewsComet 46P/Wirtanen, first discovered in 1948, makes its way around the sun every 5.4 years. And this time it's making its closest approach to Earth.
via CBC | Top Stories News
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