The mysterious comet K2 never ceases to amaze scientists

Comet K2, one of the most distant “active” comets ever discovered, swings past our planet this week as it makes its first journey from the far ends of the solar system toward the sun. Astronomers watch the mysterious ball of ice in awe, making new and often surprising discoveries at every step.

“It’s like being able to touch something from the beginning of the solar system,” David Jewitt, an astronomer at the University of California, Los Angeles, told Space.com. “It’s probably the most primitive thing in the inner solar system right now.”

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