Denise Chow is a reporter for NBC News Science focused on general science and climate change.
Comet chasers: Give the devil his due. A comet with two distinct “horns” of gas and ice, earning it the nickname “devil comet” is speeding through the inner solar system and may be visible to the naked eye in the spring when it reaches its closest point to Earth. The celestial object, formally known as Comet 12/P Pons-Brooks, does not pose a threat to the planet.
The comet has a core of dust, gas and ice surrounded by a bright cloud of gas known as a coma. Sunlight and solar radiation can heat the comet’s core, sometimes causing violent outbursts like the ones observed in July and Oct. Herman said the comet’s temporary horns are thought to originate from these icy eruptions. The comet’s structure may be shaping how the spewed clouds of gas and ice appear from Earth, creating the appearance of horns to ground-based telescopes.
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