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.
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.
The gas giant appears to have experienced a pretty significant impact event and the flash of the extraterrestrial meteor was caught by amateur astronomers who just happened to be videoing Jupiter and its moons.
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.
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.
While Earth can breathe easy for now, astronomers are on the lookout for a comet that may pose a threat to our planet in the distant future.
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