How to See the Giant Comet Heading Our Way Now - CNET

Comet C/2017 K2 will be at its closest point to us for the next few million years this week.

One of the largest comets known is about to zip by our planet on the only trip through the inner solar system it will make during our lifetimes.  Five years ago, the Hubble Space Telescope spotted a… [+2231 chars]

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