Comet
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Murderous bears and heavy metal exoplanet atmospheres lead the week in science news
By John Loeffler published
Roundup From blazing-hot exoplanet atmospheres rich in iron gas to overly aggressive bears, the week's science news was definitely perilous.
Earth may have narrowly avoided a devastating comet impact 1,600 years ago
By John Loeffler published
Evidence from the Ohio River Valley suggests that Earth had a near-miss encounter with a comet about 1,600 years ago, and it still caused considerable devastation.
A colossal comet once mistaken for a dwarf planet is headed to our solar system
By John Loeffler published
The largest comet ever discovered is currently making its way back through the solar system, with its closest approach expected in 2031.
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