A distant tailless comet hails from inner solar system, but as its lack of ice shows, it's likely an ancient body, hailing from when the planets were being born.
Was the 1977 'Wow!' signal communications from an alien civilization? Or was it interference from a passing comet? In 2017, we may finally have an answer.
The chemicals necessary for the formation of life have been detected in lab-grown comet ice -- a discovery that could have huge implications for discovering how life as we know it was spawned.
As astronomers track down more clues as to the existence of a large world orbiting the sun in the outer fringes of the solar system, a classic planetary purveyor of doom has been resurrected.
Comet P/2016 BA14 was initially thought to be a cosmic lightweight, but as it flew past Earth on March 22, NASA pinged it with radar to reveal just what a heavyweight it really is.
We are in the middle of a double comet encounter -- do astronomers view this unprecedented event as a worrying near-miss? Or is it an exciting opportunity to learn more about these mysterious icy objects?
The Discovery Channel Telescope has played a key role in identifying what could be one component of a comet twin -- both expected to fly past Earth later this month.
When Comet Siding Spring encountered Mars in 2014, it delivered a hefty magnetic punch.
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